diff --git a/React/CxxBridge/RCTCxxBridge.mm b/React/CxxBridge/RCTCxxBridge.mm
index a9bea58741a7a0..e0ab9f68446fdd 100644
--- a/React/CxxBridge/RCTCxxBridge.mm
+++ b/React/CxxBridge/RCTCxxBridge.mm
@@ -334,7 +334,7 @@ - (void)start
   // Prepare executor factory (shared_ptr for copy into block)
   std::shared_ptr<JSExecutorFactory> executorFactory;
   if (!self.executorClass) {
-    if ([self.delegate conformsToProtocol:@protocol(RCTCxxBridgeDelegate)]) {
+    if ([self.delegate respondsToSelector:@selector(jsExecutorFactoryForBridge:)]) {
       id<RCTCxxBridgeDelegate> cxxDelegate = (id<RCTCxxBridgeDelegate>)self.delegate;
       executorFactory = std::make_shared<JSCExecutorFactory>(*reinterpret_cast<JSCExecutorFactory *>([cxxDelegate jsExecutorFactoryForBridge:self]));
     }