diff --git a/Source/cmMakefile.cxx b/Source/cmMakefile.cxx
index 7be6b8823..162d3e7df 100644
--- a/Source/cmMakefile.cxx
+++ b/Source/cmMakefile.cxx
@@ -222,6 +222,26 @@ void cmMakefile::PrintCommandTrace(const cmListFileFunction& lff) const
   cmSystemTools::Message(msg.str().c_str());
 }
 
+// Helper class to make sure the call stack is valid.
+class cmMakefileCall
+{
+public:
+  cmMakefileCall(cmMakefile* mf, const cmCommandContext& lfc,
+                 cmExecutionStatus& status): Makefile(mf)
+    {
+    this->Makefile->ContextStack.push_back(&lfc);
+    this->Makefile->ExecutionStatusStack.push_back(&status);
+    }
+
+  ~cmMakefileCall()
+    {
+    this->Makefile->ExecutionStatusStack.pop_back();
+    this->Makefile->ContextStack.pop_back();
+    }
+private:
+  cmMakefile* Makefile;
+};
+
 //----------------------------------------------------------------------------
 bool cmMakefile::ExecuteCommand(const cmListFileFunction& lff,
                                 cmExecutionStatus &status)
@@ -5148,16 +5168,3 @@ cmMakefile::MacroPushPop::~MacroPushPop()
 {
   this->Makefile->PopMacroScope(this->ReportError);
 }
-
-cmMakefileCall::cmMakefileCall(cmMakefile* mf, const cmCommandContext& lfc,
-                               cmExecutionStatus& status): Makefile(mf)
-{
-  this->Makefile->ContextStack.push_back(&lfc);
-  this->Makefile->ExecutionStatusStack.push_back(&status);
-}
-
-cmMakefileCall::~cmMakefileCall()
-{
-  this->Makefile->ExecutionStatusStack.pop_back();
-  this->Makefile->ContextStack.pop_back();
-}
diff --git a/Source/cmMakefile.h b/Source/cmMakefile.h
index 45f2efb92..72179442f 100644
--- a/Source/cmMakefile.h
+++ b/Source/cmMakefile.h
@@ -959,17 +959,4 @@ private:
   mutable bool SuppressWatches;
 };
 
-//----------------------------------------------------------------------------
-// Helper class to make sure the call stack is valid.
-class cmMakefileCall
-{
-public:
-  cmMakefileCall(cmMakefile* mf,
-                 cmCommandContext const& lfc,
-                 cmExecutionStatus& status);
-  ~cmMakefileCall();
-private:
-  cmMakefile* Makefile;
-};
-
 #endif