diff --git a/.bcr/source.template.json b/.bcr/source.template.json
index 6df47bd..631b95a 100644
--- a/.bcr/source.template.json
+++ b/.bcr/source.template.json
@@ -1,5 +1,5 @@
 {
   "integrity": "**leave this alone**",
-  "strip_prefix": "{REPO}-{VERSION}",
+  "strip_prefix": "{REPO}-{TAG}",
   "url": "https://github.com/{OWNER}/{REPO}/releases/download/{TAG}/toolchains_llvm-{TAG}.tar.gz"
 }