diff --git a/lib/backend-operations/appsync-operations/helpers/helper-resolvers.js b/lib/backend-operations/appsync-operations/helpers/helper-resolvers.js
index c0224c0..9becfe2 100644
--- a/lib/backend-operations/appsync-operations/helpers/helper-resolvers.js
+++ b/lib/backend-operations/appsync-operations/helpers/helper-resolvers.js
@@ -110,7 +110,7 @@ function readResolverMappings(containerDirPath, resolver){
             if(fs.existsSync(requestMappingFilePath)){
                 resolver.requestMappingTemplate = fs.readFileSync(requestMappingFilePath).toString()
             }else{
-                throw new error('can not find mapping file: ' + requestMappingFilePath)
+                throw new Error('can not find mapping file: ' + requestMappingFilePath)
             }
         }
         
@@ -124,7 +124,7 @@ function readResolverMappings(containerDirPath, resolver){
             if(fs.existsSync(responseMappingFilePath)){
                 resolver.responseMappingTemplate = fs.readFileSync(responseMappingFilePath).toString()
             }else{
-                throw new error('can not find mapping file: ' + responseMappingFilePath)
+                throw new Error('can not find mapping file: ' + responseMappingFilePath)
             }
         }
     }