diff --git a/src/OpenFOAM/primitives/functions/Function1/makeFunction1s.C b/src/OpenFOAM/primitives/functions/Function1/makeFunction1s.C
index 76dde7fb7a..3dff56b9a0 100644
--- a/src/OpenFOAM/primitives/functions/Function1/makeFunction1s.C
+++ b/src/OpenFOAM/primitives/functions/Function1/makeFunction1s.C
@@ -24,6 +24,7 @@ License
 \*---------------------------------------------------------------------------*/
 
 #include "Constant.H"
+#include "Uniform.H"
 #include "ZeroConstant.H"
 #include "OneConstant.H"
 #include "PolynomialEntry.H"