diff --git a/Source/cmStringCommand.cxx b/Source/cmStringCommand.cxx
index 1f873e208..19d23692a 100644
--- a/Source/cmStringCommand.cxx
+++ b/Source/cmStringCommand.cxx
@@ -553,7 +553,7 @@ bool cmStringCommand::HandleFindCommand(std::vector<std::string> const&
     }
   if(std::string::npos != pos)
     {
-    std::stringstream s;
+    cmOStringStream s;
     s << pos;
     this->Makefile->AddDefinition(outvar.c_str(), s.str().c_str());
     return true;