diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index 7af81dee..e71214b8 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -17,7 +17,7 @@ jobs:
             ~/.cargo/registry
             ~/.cargo/git
             target
-          key: ${{ runner.os }}-cargo-${{ hashFiles('Cargo.toml', 'Cargo.lock) }}
+          key: ${{ runner.os }}-cargo-${{ hashFiles('Cargo.toml', 'Cargo.lock') }}
 
       - uses: actions/checkout@v2
         with: