diff --git a/.gitea/workflows/cron.yml b/.gitea/workflows/cron.yml
index 12a360d..234a9a6 100644
--- a/.gitea/workflows/cron.yml
+++ b/.gitea/workflows/cron.yml
@@ -13,7 +13,7 @@ jobs:
       - uses: actions/cache@v4
         env:
           prefix-key: v0-rust
-          hash-short: $( $${{ hashFiles('Cargo.lock') }} | cut -c 1-8 )
+          hash-short: ${{ (hashFiles('Cargo.lock') | cut -c 1-8) }}
         with:
           key: ${{ env.prefix-key }}-${{ runner.os }}-${{ runner.arch }}-${{ env.hash-short }}
           restore-keys: |