diff --git a/src/app/[locale]/roof2/RoofSelect.jsx b/src/app/[locale]/roof2/RoofSelect.jsx
index 25b9e04c..d759398b 100644
--- a/src/app/[locale]/roof2/RoofSelect.jsx
+++ b/src/app/[locale]/roof2/RoofSelect.jsx
@@ -19,9 +19,9 @@ export default function RoofSelect() {
 
   useEffect(() => {
     get({ url: '/api/roof-material/roof-material-infos' }).then((res) => {
-      if (res.length === 0) {
-        return
-      }
+      //TODO: error handling
+      if (!res) return
+
       setRoofMaterials(res)
     })
   }, [])