diff --git a/lib/Analysis/DIBuilder.cpp b/lib/Analysis/DIBuilder.cpp
index 76887746d86..00ba602bbd6 100644
--- a/lib/Analysis/DIBuilder.cpp
+++ b/lib/Analysis/DIBuilder.cpp
@@ -76,7 +76,8 @@ void DIBuilder::createCompileUnit(unsigned Lang, StringRef Filename,
                                   StringRef Directory, StringRef Producer,
                                   bool isOptimized, StringRef Flags,
                                   unsigned RunTimeVer) {
-  assert (Lang <= dwarf::DW_LANG_D && Lang >= dwarf::DW_LANG_C89
+  assert ((Lang <= dwarf::DW_LANG_Python && Lang >= dwarf::DW_LANG_C89
+	  || Lang <= dwarf::DW_LANG_hi_user && Lang >= dwarf::DW_LANG_lo_user)
 	  && "Invalid Language tag");
   assert (!Filename.empty() 
 	  && "Unable to create compile unit without filename");