diff --git a/Source/cmSourceGroup.cxx b/Source/cmSourceGroup.cxx
index 19ae8fc35..2b34f2bfc 100644
--- a/Source/cmSourceGroup.cxx
+++ b/Source/cmSourceGroup.cxx
@@ -119,12 +119,6 @@ const std::vector<const cmSourceFile*>& cmSourceGroup::GetSourceFiles() const
   return this->SourceFiles;
 }
 
-//----------------------------------------------------------------------------
-std::vector<const cmSourceFile*>& cmSourceGroup::GetSourceFiles()
-{
-  return this->SourceFiles;
-}
-
 //----------------------------------------------------------------------------
 void cmSourceGroup::AddChild(cmSourceGroup child)
 {
diff --git a/Source/cmSourceGroup.h b/Source/cmSourceGroup.h
index 71ccb513e..641dcbd57 100644
--- a/Source/cmSourceGroup.h
+++ b/Source/cmSourceGroup.h
@@ -100,7 +100,6 @@ public:
    * source group.
    */
   const std::vector<const cmSourceFile*>& GetSourceFiles() const;
-  std::vector<const cmSourceFile*>& GetSourceFiles();
   
   std::vector<cmSourceGroup> const& GetGroupChildren() const;
 private: