diff --git a/packages/snap/snap.manifest.json b/packages/snap/snap.manifest.json
index 206c244..f8de7b6 100644
--- a/packages/snap/snap.manifest.json
+++ b/packages/snap/snap.manifest.json
@@ -7,7 +7,7 @@
     "url": "https://github.com/kleros/scout-snap.git"
   },
   "source": {
-    "shasum": "688oit4YI29f42B9RFcIuCzh7JfrABkr+TWDAWkZbng=",
+    "shasum": "Ls/ufIlKzGfmNx4nKTjfV1HPVxwOHeKzAgv0ckfyeVQ=",
     "location": {
       "npm": {
         "filePath": "dist/bundle.js",
diff --git a/packages/snap/src/index.ts b/packages/snap/src/index.ts
index 107f70e..81f8219 100644
--- a/packages/snap/src/index.ts
+++ b/packages/snap/src/index.ts
@@ -321,7 +321,7 @@ export const onSignature: OnSignatureHandler = async ({ signature, signatureOrig
     } else {
       insights.push('No verifying contract found in the signature data.');
     }
-  }
+  } else return null;
 
   return {
     content: panel([