diff --git a/.github/workflows/test-library.yml b/.github/workflows/test-library.yml
index 465f82e42..ac9aa6bad 100644
--- a/.github/workflows/test-library.yml
+++ b/.github/workflows/test-library.yml
@@ -12,6 +12,9 @@ jobs:
     if: github.event_name == 'push' || github.event.pull_request.head.repo.full_name != github.repository
     outputs:
       hassecrets: ${{ steps.checksecrets.outputs.hassecrets }}
+    env:
+      CCACHE: ccache
+      CCACHE_DIR: ~/.ccache
 
     steps:
       - name: Checkout Colvars
@@ -49,9 +52,6 @@ jobs:
           fi
 
       - name: Build and test library (GCC)
-        env:
-          CCACHE: ccache
-          CCACHE_DIR: ~/.ccache
         run: cmake -P devel-tools/build_test_library.cmake
 
       - name: Check documentation of command-line scripting interface
@@ -67,18 +67,16 @@ jobs:
       - name: Build and test library (Clang)
         env:
           CMAKE_BUILD_DIR: build-clang
-          CCACHE: ccache
-          CCACHE_DIR: ~/.ccache
           CXX: clang++
           CC: clang
         run: cmake -P devel-tools/build_test_library.cmake
 
       - name: Build library with debug flags enabled
-        env:
-          CCACHE: ccache
-          CCACHE_DIR: ~/.ccache
         run: cmake -D COLVARS_DEBUG=ON -P devel-tools/build_test_library.cmake
 
+      - name: Print ccache statistics
+        run: ${CCACHE} -s
+
       - name: Check whether secrets are available
         id: checksecrets
         env: