diff --git a/packages/web3-core-requestmanager/src/index.js b/packages/web3-core-requestmanager/src/index.js
index 97b07c9fded..21478c69d07 100644
--- a/packages/web3-core-requestmanager/src/index.js
+++ b/packages/web3-core-requestmanager/src/index.js
@@ -131,11 +131,11 @@ RequestManager.prototype.setProvider = function (provider, net) {
                     _this.subscriptions.delete(subscription.subscription.id);
                 });
 
-                if(_this.provider.emit){
+                if(_this.provider && _this.provider.emit){
                     _this.provider.emit('error', errors.ConnectionCloseError(event));
                 }
             }
-            if(_this.provider.emit){
+            if(_this.provider && _this.provider.emit){
                 _this.provider.emit('end', event);
             }
         });