diff --git a/src/OpenFOAM/containers/Lists/DynamicList/DynamicList.H b/src/OpenFOAM/containers/Lists/DynamicList/DynamicList.H
index 89f4aa92dd..69ff78be7d 100644
--- a/src/OpenFOAM/containers/Lists/DynamicList/DynamicList.H
+++ b/src/OpenFOAM/containers/Lists/DynamicList/DynamicList.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2022 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -44,6 +44,7 @@ SourceFiles
 #define DynamicList_H
 
 #include "List.H"
+#include "DynamicListFwd.H"
 #include <type_traits>
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
@@ -53,9 +54,6 @@ namespace Foam
 
 // Forward declaration of friend functions and operators
 
-template<class T, unsigned SizeInc, unsigned SizeMult, unsigned SizeDiv>
-class DynamicList;
-
 template<class T, unsigned SizeInc, unsigned SizeMult, unsigned SizeDiv>
 Ostream& operator<<
 (
@@ -74,7 +72,7 @@ Istream& operator>>
                          Class DynamicList Declaration
 \*---------------------------------------------------------------------------*/
 
-template<class T, unsigned SizeInc=0, unsigned SizeMult=2, unsigned SizeDiv=1>
+template<class T, unsigned SizeInc, unsigned SizeMult, unsigned SizeDiv>
 class DynamicList
 :
     public List<T>
diff --git a/src/OpenFOAM/containers/Lists/DynamicList/DynamicListFwd.H b/src/OpenFOAM/containers/Lists/DynamicList/DynamicListFwd.H
new file mode 100644
index 0000000000..bcf1e901e8
--- /dev/null
+++ b/src/OpenFOAM/containers/Lists/DynamicList/DynamicListFwd.H
@@ -0,0 +1,53 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     | Website:  https://openfoam.org
+    \\  /    A nd           | Copyright (C) 2022 OpenFOAM Foundation
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef DynamicListFwd_H
+#define DynamicListFwd_H
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+template
+<
+    class Type,
+    unsigned SizeInc = 0,
+    unsigned SizeMult = 2,
+    unsigned SizeDiv = 1
+>
+class DynamicList;
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace Foam
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#endif
+
+// ************************************************************************* //
diff --git a/src/OpenFOAM/containers/Lists/List/List.H b/src/OpenFOAM/containers/Lists/List/List.H
index 19ba4a3c0f..9c5c10c249 100644
--- a/src/OpenFOAM/containers/Lists/List/List.H
+++ b/src/OpenFOAM/containers/Lists/List/List.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2022 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -42,6 +42,7 @@ SourceFiles
 
 #include "UList.H"
 #include "autoPtr.H"
+#include "DynamicListFwd.H"
 #include <initializer_list>
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
@@ -75,9 +76,6 @@ template<class LListBase, class T> class LList;
 template<class T>
 using SLList = LList<SLListBase, T>;
 
-template<class T, unsigned SizeInc, unsigned SizeMult, unsigned SizeDiv>
-class DynamicList;
-
 template<class T> class SortableList;
 template<class T> class IndirectList;
 template<class T> class UIndirectList;
diff --git a/src/OpenFOAM/fields/Fields/DynamicField/DynamicField.H b/src/OpenFOAM/fields/Fields/DynamicField/DynamicField.H
index 460228c182..60166d9b9b 100644
--- a/src/OpenFOAM/fields/Fields/DynamicField/DynamicField.H
+++ b/src/OpenFOAM/fields/Fields/DynamicField/DynamicField.H
@@ -37,6 +37,7 @@ SourceFiles
 #define DynamicField_H
 
 #include "Field.H"
+#include "DynamicFieldFwd.H"
 #include <type_traits>
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
@@ -46,9 +47,6 @@ namespace Foam
 
 // Forward declaration of friend functions and operators
 
-template<class T, unsigned SizeInc, unsigned SizeMult, unsigned SizeDiv>
-class DynamicField;
-
 template<class T, unsigned SizeInc, unsigned SizeMult, unsigned SizeDiv>
 Ostream& operator<<
 (
@@ -68,7 +66,7 @@ Istream& operator>>
                         Class DynamicField Declaration
 \*---------------------------------------------------------------------------*/
 
-template<class T, unsigned SizeInc=0, unsigned SizeMult=2, unsigned SizeDiv=1>
+template<class T, unsigned SizeInc, unsigned SizeMult, unsigned SizeDiv>
 class DynamicField
 :
     public Field<T>
diff --git a/src/OpenFOAM/fields/Fields/DynamicField/DynamicFieldFwd.H b/src/OpenFOAM/fields/Fields/DynamicField/DynamicFieldFwd.H
new file mode 100644
index 0000000000..3f86d1ff6b
--- /dev/null
+++ b/src/OpenFOAM/fields/Fields/DynamicField/DynamicFieldFwd.H
@@ -0,0 +1,53 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     | Website:  https://openfoam.org
+    \\  /    A nd           | Copyright (C) 2022 OpenFOAM Foundation
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef DynamicFieldFwd_H
+#define DynamicFieldFwd_H
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+template
+<
+    class Type,
+    unsigned SizeInc = 0,
+    unsigned SizeMult = 2,
+    unsigned SizeDiv = 1
+>
+class DynamicField;
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace Foam
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#endif
+
+// ************************************************************************* //
diff --git a/src/OpenFOAM/meshes/meshShapes/face/face.H b/src/OpenFOAM/meshes/meshShapes/face/face.H
index 2f41fecf4f..3a705132bc 100644
--- a/src/OpenFOAM/meshes/meshShapes/face/face.H
+++ b/src/OpenFOAM/meshes/meshShapes/face/face.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2022 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -48,6 +48,7 @@ SourceFiles
 #include "edgeList.H"
 #include "vectorField.H"
 #include "faceListFwd.H"
+#include "DynamicListFwd.H"
 #include "intersection.H"
 #include "pointHit.H"
 #include "ListListOps.H"
@@ -62,9 +63,6 @@ namespace Foam
 class face;
 class triFace;
 
-template<class T, unsigned SizeInc, unsigned SizeMult, unsigned SizeDiv>
-class DynamicList;
-
 inline bool operator==(const face& a, const face& b);
 inline bool operator!=(const face& a, const face& b);
 inline Istream& operator>>(Istream&, face&);