diff --git a/ios/TcpSocketClient.m b/ios/TcpSocketClient.m
index 009e5af..d08dcab 100644
--- a/ios/TcpSocketClient.m
+++ b/ios/TcpSocketClient.m
@@ -123,7 +123,7 @@ - (BOOL)listen:(NSString *)host port:(int)port error:(NSError **)error
 
     // GCDAsyncSocket doesn't recognize 0.0.0.0
     if ([@"0.0.0.0" isEqualToString: host]) {
-        host = @"localhost";
+        host = nil;
     }
     BOOL isListening = [_tcpSocket acceptOnInterface:host port:port error:error];
     if (isListening == YES) {