diff --git a/src/MomentumTransportModels/momentumTransportModels/RAS/LRR/LRR.C b/src/MomentumTransportModels/momentumTransportModels/RAS/LRR/LRR.C
index 4f33cb2f50..fae7489515 100644
--- a/src/MomentumTransportModels/momentumTransportModels/RAS/LRR/LRR.C
+++ b/src/MomentumTransportModels/momentumTransportModels/RAS/LRR/LRR.C
@@ -176,7 +176,7 @@ LRR<BasicMomentumTransportModel>::LRR
     (
         IOobject
         (
-            "k",
+            IOobject::groupName("k", alphaRhoPhi.group()),
             this->runTime_.timeName(),
             this->mesh_,
             IOobject::NO_READ,
@@ -188,7 +188,7 @@ LRR<BasicMomentumTransportModel>::LRR
     (
         IOobject
         (
-            "epsilon",
+            IOobject::groupName("epsilon", alphaRhoPhi.group()),
             this->runTime_.timeName(),
             this->mesh_,
             IOobject::MUST_READ,
diff --git a/src/MomentumTransportModels/momentumTransportModels/RAS/LaunderSharmaKE/LaunderSharmaKE.C b/src/MomentumTransportModels/momentumTransportModels/RAS/LaunderSharmaKE/LaunderSharmaKE.C
index e4e1a8b7c4..12850eb79a 100644
--- a/src/MomentumTransportModels/momentumTransportModels/RAS/LaunderSharmaKE/LaunderSharmaKE.C
+++ b/src/MomentumTransportModels/momentumTransportModels/RAS/LaunderSharmaKE/LaunderSharmaKE.C
@@ -178,7 +178,7 @@ LaunderSharmaKE<BasicMomentumTransportModel>::LaunderSharmaKE
     (
         IOobject
         (
-            "k",
+            IOobject::groupName("k", alphaRhoPhi.group()),
             this->runTime_.timeName(),
             this->mesh_,
             IOobject::MUST_READ,
@@ -191,7 +191,7 @@ LaunderSharmaKE<BasicMomentumTransportModel>::LaunderSharmaKE
     (
         IOobject
         (
-            "epsilon",
+            IOobject::groupName("epsilon", alphaRhoPhi.group()),
             this->runTime_.timeName(),
             this->mesh_,
             IOobject::MUST_READ,
diff --git a/src/MomentumTransportModels/momentumTransportModels/RAS/SSG/SSG.C b/src/MomentumTransportModels/momentumTransportModels/RAS/SSG/SSG.C
index 09a30626e4..59faff5c76 100644
--- a/src/MomentumTransportModels/momentumTransportModels/RAS/SSG/SSG.C
+++ b/src/MomentumTransportModels/momentumTransportModels/RAS/SSG/SSG.C
@@ -185,7 +185,7 @@ SSG<BasicMomentumTransportModel>::SSG
     (
         IOobject
         (
-            "k",
+            IOobject::groupName("k", alphaRhoPhi.group()),
             this->runTime_.timeName(),
             this->mesh_,
             IOobject::NO_READ,
@@ -197,7 +197,7 @@ SSG<BasicMomentumTransportModel>::SSG
     (
         IOobject
         (
-            "epsilon",
+            IOobject::groupName("epsilon", alphaRhoPhi.group()),
             this->runTime_.timeName(),
             this->mesh_,
             IOobject::MUST_READ,
diff --git a/src/MomentumTransportModels/momentumTransportModels/RAS/realizableKE/realizableKE.C b/src/MomentumTransportModels/momentumTransportModels/RAS/realizableKE/realizableKE.C
index 307343830d..ec93b7730e 100644
--- a/src/MomentumTransportModels/momentumTransportModels/RAS/realizableKE/realizableKE.C
+++ b/src/MomentumTransportModels/momentumTransportModels/RAS/realizableKE/realizableKE.C
@@ -191,7 +191,7 @@ realizableKE<BasicMomentumTransportModel>::realizableKE
     (
         IOobject
         (
-            "k",
+            IOobject::groupName("k", alphaRhoPhi.group()),
             this->runTime_.timeName(),
             this->mesh_,
             IOobject::MUST_READ,
@@ -203,7 +203,7 @@ realizableKE<BasicMomentumTransportModel>::realizableKE
     (
         IOobject
         (
-            "epsilon",
+            IOobject::groupName("epsilon", alphaRhoPhi.group()),
             this->runTime_.timeName(),
             this->mesh_,
             IOobject::MUST_READ,