diff --git a/.github/workflows/core_build.yml b/.github/workflows/core_build.yml
index b0f272f7..806ee7df 100644
--- a/.github/workflows/core_build.yml
+++ b/.github/workflows/core_build.yml
@@ -53,10 +53,10 @@ jobs:
         uses: actions/cache@v4
         with:
           path: ${{ github.workspace }}/var/ccache
-          key: ccache:${{ matrix.os }}:${{ github.ref }}:${{ matrix.c_compiler }}:${{ github.sha }}
+          key: ccache:${{ matrix.os }}:${{ matrix.c_compiler }}:${{ github.ref }}:${{ github.sha }}
           restore-keys: |
-            ccache:${{ matrix.os }}:${{ github.ref }}:${{ matrix.c_compiler }}
-            ccache:${{ matrix.os }}:${{ github.ref }}
+            ccache:${{ matrix.os }}:${{ matrix.c_compiler }}:${{ github.ref }}
+            ccache:${{ matrix.os }}:${{ matrix.c_compiler }}
             ccache:${{ matrix.os }}
 
       - name: Install Requirements