diff --git a/lib/AST/ASTContext.cpp b/lib/AST/ASTContext.cpp
index 8051dca..988bedb 100644
--- a/lib/AST/ASTContext.cpp
+++ b/lib/AST/ASTContext.cpp
@@ -4336,7 +4336,7 @@
           // when comparing an id<P> on rhs with a static type on lhs,
           // static class must implement all of id's protocols directly or
           // indirectly through its super class.
-          if (lhsID->ClassImplementsProtocol(*I, false)) {
+          if (lhsID->ClassImplementsProtocol(*I, true)) {
             match = true;
             break;
           }