diff --git a/src/objective-c/GRPCClient/GRPCCall.h b/src/objective-c/GRPCClient/GRPCCall.h
index c862609b21c..13dcfa07130 100644
--- a/src/objective-c/GRPCClient/GRPCCall.h
+++ b/src/objective-c/GRPCClient/GRPCCall.h
@@ -218,7 +218,7 @@ extern NSString * const kGRPCTrailersKey;
 
 - (instancetype)init NS_UNAVAILABLE;
 
-+ (instancetype) new NS_UNAVAILABLE;
++ (instancetype)new NS_UNAVAILABLE;
 
 /**
  * Designated initializer for a call.
diff --git a/src/objective-c/GRPCClient/private/GRPCChannel.h b/src/objective-c/GRPCClient/private/GRPCChannel.h
index 5f5fae04135..5fb18e0332e 100644
--- a/src/objective-c/GRPCClient/private/GRPCChannel.h
+++ b/src/objective-c/GRPCClient/private/GRPCChannel.h
@@ -32,6 +32,8 @@ struct grpc_channel_credentials;
 
 - (nullable instancetype)init NS_UNAVAILABLE;
 
++ (nullable instancetype)new NS_UNAVAILABLE;
+
 /**
  * Returns a channel connecting to \a host with options as \a callOptions. The channel may be new
  * or a cached channel that is already connected.