diff --git a/lib/IR/DebugInfo.cpp b/lib/IR/DebugInfo.cpp
index 369895c..4d5ae26 100644
--- a/lib/IR/DebugInfo.cpp
+++ b/lib/IR/DebugInfo.cpp
@@ -711,9 +711,7 @@
   if (isNameSpace())
     return DINameSpace(DbgNode).getContext();
 
-  if (isFile() || isCompileUnit())
-    return DIScope();
-
+  assert(isFile() || isCompileUnit() && "Unhandled type of scope.");
   return DIScope();
 }