1 files changed, 2 insertions, 0 deletions
diff --git a/lib/Sema/SemaLookup.cpp b/lib/Sema/SemaLookup.cpp
index 389abd5ec7..f7dd69a78a 100644
--- a/lib/Sema/SemaLookup.cpp
+++ b/lib/Sema/SemaLookup.cpp
@@ -1067,6 +1067,8 @@ static NamedDecl *getPreviousDeclaration(NamedDecl *D) {
     return TD->getPreviousDeclaration();
   if (ObjCInterfaceDecl *ID = dyn_cast<ObjCInterfaceDecl>(D))
     return ID->getPreviousDeclaration();
+  if (ObjCProtocolDecl *PD = dyn_cast<ObjCProtocolDecl>(D))
+    return PD->getPreviousDeclaration();
   
   return 0;
 }