diff --git a/src/turbulenceModels/compressible/RAS/derivedFvPatchFields/wallFunctions/mutWallFunctions/mutkWallFunction/mutkWallFunctionFvPatchScalarField.C b/src/turbulenceModels/compressible/RAS/derivedFvPatchFields/wallFunctions/mutWallFunctions/mutkWallFunction/mutkWallFunctionFvPatchScalarField.C
index b7580a5d7a..5ab8324cda 100644
--- a/src/turbulenceModels/compressible/RAS/derivedFvPatchFields/wallFunctions/mutWallFunctions/mutkWallFunction/mutkWallFunctionFvPatchScalarField.C
+++ b/src/turbulenceModels/compressible/RAS/derivedFvPatchFields/wallFunctions/mutWallFunctions/mutkWallFunction/mutkWallFunctionFvPatchScalarField.C
@@ -191,6 +191,11 @@ mutkWallFunctionFvPatchScalarField::mutkWallFunctionFvPatchScalarField
 
 void mutkWallFunctionFvPatchScalarField::updateCoeffs()
 {
+    if (updated())
+    {
+        return;
+    }
+
     operator==(calcMut());
 
     fixedValueFvPatchScalarField::updateCoeffs();
diff --git a/src/turbulenceModels/incompressible/RAS/derivedFvPatchFields/wallFunctions/nutWallFunctions/nutkWallFunction/nutkWallFunctionFvPatchScalarField.C b/src/turbulenceModels/incompressible/RAS/derivedFvPatchFields/wallFunctions/nutWallFunctions/nutkWallFunction/nutkWallFunctionFvPatchScalarField.C
index 722016a2e7..dbb07712d8 100644
--- a/src/turbulenceModels/incompressible/RAS/derivedFvPatchFields/wallFunctions/nutWallFunctions/nutkWallFunction/nutkWallFunctionFvPatchScalarField.C
+++ b/src/turbulenceModels/incompressible/RAS/derivedFvPatchFields/wallFunctions/nutWallFunctions/nutkWallFunction/nutkWallFunctionFvPatchScalarField.C
@@ -200,6 +200,11 @@ nutkWallFunctionFvPatchScalarField::nutkWallFunctionFvPatchScalarField
 
 void nutkWallFunctionFvPatchScalarField::updateCoeffs()
 {
+    if (updated())
+    {
+        return;
+    }
+
     operator==(calcNut());
 
     fixedValueFvPatchScalarField::updateCoeffs();