diff --git a/MIGRATION.md b/MIGRATION.md
index d21e9d63f4..6a1b686a67 100644
--- a/MIGRATION.md
+++ b/MIGRATION.md
@@ -441,7 +441,7 @@ import { environment } from '../environments/environment'; // Angular CLI enviro
 
 @NgModule({
   imports: [
-    !environment.prod ? StoreDevtoolsModule.instrument({ maxAge: 50 }) : []
+    !environment.production ? StoreDevtoolsModule.instrument({ maxAge: 50 }) : []
   ]
 })
 export class AppModule {}