diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 15ec6da3..9ed68483 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -37,7 +37,7 @@ jobs:
         uses: actions/cache@v4
         with:
           path: ./build/
-          key: ${{ runner.os }}-cleo-build-${{ hashFiles('./build/**') }}
+          key: ${{ runner.os }}-cleo-build-${{ github.sha }}
           restore-keys: |
             ${{ runner.os }}-cleo-build-
 
@@ -61,7 +61,6 @@ jobs:
 
       - name: Build main
         run: |
-          mkdir build
           cmake -S ./ -B ./build \
           -DCMAKE_C_COMPILER=gcc \
           -DCMAKE_CXX_COMPILER=g++ \