diff --git a/src/objective-c/ProtoRPC/ProtoService.m b/src/objective-c/ProtoRPC/ProtoService.m
index 4a14570d818..cd9bc7aeac4 100644
--- a/src/objective-c/ProtoRPC/ProtoService.m
+++ b/src/objective-c/ProtoRPC/ProtoService.m
@@ -65,19 +65,22 @@
   return self;
 }
 
-- (GRPCProtoCall *)RPCToMethod:(NSString *)method
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wincompatible-pointer-types"
+- (ProtoRPC *)RPCToMethod:(NSString *)method
            requestsWriter:(GRXWriter *)requestsWriter
             responseClass:(Class)responseClass
        responsesWriteable:(id<GRXWriteable>)responsesWriteable {
-  GRPCProtoMethod *methodName = [[GRPCProtoMethod alloc] initWithPackage:_packageName
+  ProtoMethod *methodName = [[ProtoMethod alloc] initWithPackage:_packageName
                                                          service:_serviceName
                                                           method:method];
-  return [[GRPCProtoCall alloc] initWithHost:_host
+  return [[ProtoRPC alloc] initWithHost:_host
                                  method:methodName
                          requestsWriter:requestsWriter
                           responseClass:responseClass
                      responsesWriteable:responsesWriteable];
 }
+#pragma clang diagnostic pop
 @end
 
 @implementation GRPCProtoService