diff --git a/src/TurbulenceModels/turbulenceModels/RAS/kOmegaSST/kOmegaSST.C b/src/TurbulenceModels/turbulenceModels/RAS/kOmegaSST/kOmegaSST.C
index aab8941a4f..9eaee35651 100644
--- a/src/TurbulenceModels/turbulenceModels/RAS/kOmegaSST/kOmegaSST.C
+++ b/src/TurbulenceModels/turbulenceModels/RAS/kOmegaSST/kOmegaSST.C
@@ -25,6 +25,7 @@ License
 
 #include "kOmegaSST.H"
 #include "bound.H"
+#include "wallDist.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //