diff --git a/src/OpenFOAM/expressions/exprResult/exprResultI.H b/src/OpenFOAM/expressions/exprResult/exprResultI.H
index 2ff92efb86..5fd9fcf216 100644
--- a/src/OpenFOAM/expressions/exprResult/exprResultI.H
+++ b/src/OpenFOAM/expressions/exprResult/exprResultI.H
@@ -29,17 +29,19 @@ License
 // * * * * * * * * * * * * Template Specializations  * * * * * * * * * * * * //
 
 namespace Foam
+{
+namespace expressions
 {
     #undef  defineExpressionMethod
     #define defineExpressionMethod(Type, Var)                                 \
-        template<> inline const Type&                                         \
-        expressions::exprResult::singleValue::get<Type>() const               \
+        template<>                                                            \
+        inline const Type& exprResult::singleValue::get<Type>() const         \
         {                                                                     \
             return Var;                                                       \
         }                                                                     \
                                                                               \
-        template<> inline const Type&                                         \
-        expressions::exprResult::singleValue::set(const Type& val)            \
+        template<>                                                            \
+        inline const Type& exprResult::singleValue::set(const Type& val)      \
         {                                                                     \
             Var = val;                                                        \
             return Var;                                                       \
@@ -53,7 +55,9 @@ namespace Foam
     defineExpressionMethod(sphericalTensor, sphTensor_);
 
     #undef defineExpressionMethod
-}
+
+} // End namespace expressions
+} // End namespace Foam
 
 
 // * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //