diff --git a/config/packages/assets.yaml b/config/packages/assets.yaml
index 051d36dce..9ef522247 100644
--- a/config/packages/assets.yaml
+++ b/config/packages/assets.yaml
@@ -1,3 +1,4 @@
 framework:
     assets:
         json_manifest_path: '%kernel.project_dir%/public/build/manifest.json'
+        strict_mode: '%kernel.debug%'