diff --git a/src/contentful-typescript-codegen.ts b/src/contentful-typescript-codegen.ts
index 2d3b6daf..9ac6840f 100644
--- a/src/contentful-typescript-codegen.ts
+++ b/src/contentful-typescript-codegen.ts
@@ -67,6 +67,7 @@ async function runCodegen(outputFile: string) {
 
 runCodegen(cli.flags.output).catch(error => {
   console.error(error)
+  process.exit(1)
 })
 
 if (cli.flags.poll) {