diff --git a/Source/cmTarget.cxx b/Source/cmTarget.cxx
index 0866d103f..9d17320e7 100644
--- a/Source/cmTarget.cxx
+++ b/Source/cmTarget.cxx
@@ -578,16 +578,6 @@ void cmTarget::GetSourceFiles(std::vector<cmSourceFile*> &files) const
   files = this->SourceFiles;
 }
 
-//----------------------------------------------------------------------------
-void cmTarget::AddSourceFile(cmSourceFile* sf)
-{
-  if (std::find(this->SourceFiles.begin(), this->SourceFiles.end(), sf)
-                                            == this->SourceFiles.end())
-    {
-    this->SourceFiles.push_back(sf);
-    }
-}
-
 //----------------------------------------------------------------------------
 void cmTarget::AddSources(std::vector<std::string> const& srcs)
 {
@@ -653,7 +643,11 @@ cmSourceFile* cmTarget::AddSourceCMP0049(const std::string& s)
 cmSourceFile* cmTarget::AddSource(const std::string& src)
 {
   cmSourceFile* sf = this->Makefile->GetOrCreateSource(src);
-  this->AddSourceFile(sf);
+  if (std::find(this->SourceFiles.begin(), this->SourceFiles.end(), sf)
+                                            == this->SourceFiles.end())
+    {
+    this->SourceFiles.push_back(sf);
+    }
   return sf;
 }
 
diff --git a/Source/cmTarget.h b/Source/cmTarget.h
index 8df9bd883..e9e36227f 100644
--- a/Source/cmTarget.h
+++ b/Source/cmTarget.h
@@ -137,7 +137,6 @@ public:
    */
   void GetSourceFiles(std::vector<std::string> &files) const;
   void GetSourceFiles(std::vector<cmSourceFile*> &files) const;
-  void AddSourceFile(cmSourceFile* sf);
   std::vector<std::string> const& GetObjectLibraries() const
     {
     return this->ObjectLibraries;