diff --git a/src/lagrangian/dieselSpray/spraySubModels/injectorModel/Chomiak/Chomiak.C b/src/lagrangian/dieselSpray/spraySubModels/injectorModel/Chomiak/Chomiak.C
index 661a2ea7b2..bf1a792c6f 100644
--- a/src/lagrangian/dieselSpray/spraySubModels/injectorModel/Chomiak/Chomiak.C
+++ b/src/lagrangian/dieselSpray/spraySubModels/injectorModel/Chomiak/Chomiak.C
@@ -55,7 +55,7 @@ Foam::ChomiakInjector::ChomiakInjector
     ChomiakDict_(dict.subDict(typeName + "Coeffs")),
     dropletPDF_
     (
-        pdf::New
+        pdfs::pdf::New
         (
             ChomiakDict_.subDict("dropletPDF"),
             sm.rndGen()
diff --git a/src/lagrangian/dieselSpray/spraySubModels/injectorModel/Chomiak/Chomiak.H b/src/lagrangian/dieselSpray/spraySubModels/injectorModel/Chomiak/Chomiak.H
index 50de0a31dc..87c2d1d816 100644
--- a/src/lagrangian/dieselSpray/spraySubModels/injectorModel/Chomiak/Chomiak.H
+++ b/src/lagrangian/dieselSpray/spraySubModels/injectorModel/Chomiak/Chomiak.H
@@ -64,7 +64,7 @@ private:
 
         dictionary ChomiakDict_;
 
-        autoPtr<pdf> dropletPDF_;
+        autoPtr<pdfs::pdf> dropletPDF_;
         scalarList maxSprayAngle_;
 
 
diff --git a/src/lagrangian/dieselSpray/spraySubModels/injectorModel/definedHollowCone/definedHollowCone.C b/src/lagrangian/dieselSpray/spraySubModels/injectorModel/definedHollowCone/definedHollowCone.C
index 883dc9c431..e266181c9c 100644
--- a/src/lagrangian/dieselSpray/spraySubModels/injectorModel/definedHollowCone/definedHollowCone.C
+++ b/src/lagrangian/dieselSpray/spraySubModels/injectorModel/definedHollowCone/definedHollowCone.C
@@ -55,7 +55,7 @@ Foam::definedHollowConeInjector::definedHollowConeInjector
     definedHollowConeDict_(dict.subDict(typeName + "Coeffs")),
     dropletPDF_
     (
-        pdf::New
+        pdfs::pdf::New
         (
             definedHollowConeDict_.subDict("dropletPDF"),
             sm.rndGen()
diff --git a/src/lagrangian/dieselSpray/spraySubModels/injectorModel/definedHollowCone/definedHollowCone.H b/src/lagrangian/dieselSpray/spraySubModels/injectorModel/definedHollowCone/definedHollowCone.H
index 56d6241892..d5318120ec 100644
--- a/src/lagrangian/dieselSpray/spraySubModels/injectorModel/definedHollowCone/definedHollowCone.H
+++ b/src/lagrangian/dieselSpray/spraySubModels/injectorModel/definedHollowCone/definedHollowCone.H
@@ -61,7 +61,7 @@ private:
         typedef VectorSpace<Vector<scalar>, scalar, 2> pair;
 
         dictionary definedHollowConeDict_;
-        autoPtr<pdf> dropletPDF_;
+        autoPtr<pdfs::pdf> dropletPDF_;
 
         // inner and outer cone angle time histories
         // 2 column vectors = (time, coneAngle)
diff --git a/src/lagrangian/dieselSpray/spraySubModels/injectorModel/hollowCone/hollowCone.C b/src/lagrangian/dieselSpray/spraySubModels/injectorModel/hollowCone/hollowCone.C
index 40508fda7e..28bed642e0 100644
--- a/src/lagrangian/dieselSpray/spraySubModels/injectorModel/hollowCone/hollowCone.C
+++ b/src/lagrangian/dieselSpray/spraySubModels/injectorModel/hollowCone/hollowCone.C
@@ -55,7 +55,7 @@ Foam::hollowConeInjector::hollowConeInjector
     hollowConeDict_(dict.subDict(typeName + "Coeffs")),
     dropletPDF_
     (
-        pdf::New
+        pdfs::pdf::New
         (
             hollowConeDict_.subDict("dropletPDF"),
             sm.rndGen()
diff --git a/src/lagrangian/dieselSpray/spraySubModels/injectorModel/hollowCone/hollowCone.H b/src/lagrangian/dieselSpray/spraySubModels/injectorModel/hollowCone/hollowCone.H
index 985d7c6073..6df6552174 100644
--- a/src/lagrangian/dieselSpray/spraySubModels/injectorModel/hollowCone/hollowCone.H
+++ b/src/lagrangian/dieselSpray/spraySubModels/injectorModel/hollowCone/hollowCone.H
@@ -59,7 +59,7 @@ private:
 
         dictionary hollowConeDict_;
 
-        autoPtr<pdf> dropletPDF_;
+        autoPtr<pdfs::pdf> dropletPDF_;
         scalarList innerAngle_;
         scalarList outerAngle_;