1 files changed, 2 insertions, 2 deletions
diff --git a/src/objective-c/GRPCClient/private/GRPCConnectivityMonitor.m b/src/objective-c/GRPCClient/private/GRPCConnectivityMonitor.m
index a36788b35a..bb8618ff33 100644
--- a/src/objective-c/GRPCClient/private/GRPCConnectivityMonitor.m
+++ b/src/objective-c/GRPCClient/private/GRPCConnectivityMonitor.m
@@ -76,14 +76,14 @@ static void ReachabilityCallback(SCNetworkReachabilityRef target, SCNetworkReach
   }
 }
 
-+ (void)registerObserver:(_Nonnull id)observer selector:(SEL)selector {
++ (void)registerObserver:(id)observer selector:(SEL)selector {
   [[NSNotificationCenter defaultCenter] addObserver:observer
                                            selector:selector
                                                name:kGRPCConnectivityNotification
                                              object:nil];
 }
 
-+ (void)unregisterObserver:(_Nonnull id)observer {
++ (void)unregisterObserver:(id)observer {
   [[NSNotificationCenter defaultCenter] removeObserver:observer];
 }