diff --git a/bucket/ack.json b/bucket/ack.json
index 5146fbff90..7b963a7009 100644
--- a/bucket/ack.json
+++ b/bucket/ack.json
@@ -13,6 +13,6 @@
         "re": "The current stable version of ack is v([\\d.]+),"
     },
     "autoupdate": {
-        "url": "https://beyondgrep.com/ack-$version#/ack-single-file"
+        "url": "https://beyondgrep.com/ack-v$version#/ack-single-file"
     }
 }