diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 5554e59a5..4c6271d72 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -565,7 +565,7 @@ jobs:
       with:
         path: |
           llvm-project
-        key: ${{ matrix.os }}-clang-${{ matrix.clang-runtime }}.x
+        key: ${{ matrix.os }}-clang-${{ matrix.clang-runtime }}.x-${{ env.BUILD_TYPE }}
     - name: Build LLVM/Cling on Unix if the cache is invalid (debug_build==true)
       if: ${{ (matrix.debug_build == true) && (runner.os != 'windows') && (steps.cache.outputs.cache-hit != 'true') }}
       run: |