diff --git a/README.md b/README.md
index ee61a9e14..3c82426ea 100644
--- a/README.md
+++ b/README.md
@@ -24,7 +24,7 @@ The `graphql:Listener` is used to listen to a given IP/Port. To create a `graphq
 ```ballerina
 import ballerina/graphql;
 
-listener graphql:Listener graphqlListener = new(4000);
+listener graphql:Listener graphqlListener = check new(4000);
 ```
 
 ### Create a `graphql:Listener` using an `http:Listener`
@@ -34,7 +34,7 @@ import ballerina/graphql;
 import ballerina/http;
 
 listener http:Listener httpListener = check new(4000);
-listener graphql:Listener graphqlListener = new(httpListener);
+listener graphql:Listener graphqlListener = check new(httpListener);
 ```
 
 ## Service
diff --git a/ballerina/Module.md b/ballerina/Module.md
index d16f83e9f..4c734a620 100644
--- a/ballerina/Module.md
+++ b/ballerina/Module.md
@@ -15,7 +15,7 @@ The `graphql:Listener` is used to listen to a given IP/Port. To create a `graphq
 ```ballerina
 import ballerina/graphql;
 
-listener graphql:Listener graphqlListener = new(4000);
+listener graphql:Listener graphqlListener = check new(4000);
 ```
 
 ### Create a `graphql:Listener` using an `http:Listener`
@@ -25,7 +25,7 @@ import ballerina/graphql;
 import ballerina/http;
 
 listener http:Listener httpListener = check new(4000);
-listener graphql:Listener graphqlListener = new(httpListener);
+listener graphql:Listener graphqlListener = check new(httpListener);
 ```
 
 ## Service
diff --git a/ballerina/Package.md b/ballerina/Package.md
index 6d0d84dd6..4c3de332e 100644
--- a/ballerina/Package.md
+++ b/ballerina/Package.md
@@ -15,7 +15,7 @@ The `graphql:Listener` is used to listen to a given IP/Port. To create a `graphq
 ```ballerina
 import ballerina/graphql;
 
-listener graphql:Listener graphqlListener = new(4000);
+listener graphql:Listener graphqlListener = check new(4000);
 ```
 
 ### Create a `graphql:Listener` using an `http:Listener`
@@ -25,7 +25,7 @@ import ballerina/graphql;
 import ballerina/http;
 
 listener http:Listener httpListener = check new(4000);
-listener graphql:Listener graphqlListener = new(httpListener);
+listener graphql:Listener graphqlListener = check new(httpListener);
 ```
 
 ## Service