diff --git a/Source/cmStandardIncludes.h b/Source/cmStandardIncludes.h
index 0563d3c2a..fb1bdb65d 100644
--- a/Source/cmStandardIncludes.h
+++ b/Source/cmStandardIncludes.h
@@ -108,9 +108,9 @@ using ::ifstream;
 using ::ofstream;
   
 #if !defined(CMAKE_NO_ANSI_STRING_STREAM)
-  using ::stringstream;
+  using ::ostringstream;
 #else
-  using ::strstream;
+  using ::ostrstream;
 #endif
   
 using ::endl;