diff --git a/Libraries/WebSocket/RCTSRWebSocket.m b/Libraries/WebSocket/RCTSRWebSocket.m
index b967c14173d625..8ce6edc4dae216 100644
--- a/Libraries/WebSocket/RCTSRWebSocket.m
+++ b/Libraries/WebSocket/RCTSRWebSocket.m
@@ -462,7 +462,7 @@ - (void)didConnect
 
   CFHTTPMessageSetHeaderFieldValue(request, CFSTR("Origin"), (__bridge CFStringRef)_url.RCTSR_origin);
 
-  if (_requestedProtocols) {
+  if (_requestedProtocols && _requestedProtocols.count > 0) {
     CFHTTPMessageSetHeaderFieldValue(request, CFSTR("Sec-WebSocket-Protocol"), (__bridge CFStringRef)[_requestedProtocols componentsJoinedByString:@", "]);
   }