diff --git a/include/llvm/Metadata.h b/include/llvm/Metadata.h
index c9830156ec1..ed87d427e65 100644
--- a/include/llvm/Metadata.h
+++ b/include/llvm/Metadata.h
@@ -63,7 +63,7 @@ public:
   
   StringRef getString() const { return Str; }
 
-  unsigned getLength() const { return Str.size(); }
+  unsigned getLength() const { return (unsigned)Str.size(); }
 
   typedef StringRef::iterator iterator;
   
@@ -191,7 +191,7 @@ public:
 
   /// getNumElements - Return number of NamedMDNode elements.
   unsigned getNumElements() const {
-    return Node.size();
+    return (unsigned)Node.size();
   }
 
   /// addElement - Add metadata element.