diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 61fa551..450b825 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -150,12 +150,10 @@ jobs:
       - name: Configure
         run: |
           export MPICH_CXX=$(which clang++)
-          export MPICH_CC=$(which clang)
           cmake \
           -B ${{runner.workspace}}/build-clang-tidy \
           -DCMAKE_BUILD_TYPE:STRING=Release \
           -DCMAKE_CXX_COMPILER:STRING=mpicxx \
-          -DCMAKE_C_COMPILER:STRING=mpicc \
           -DTIOGA_ENABLE_CLANG_TIDY:BOOL=ON \
           -DCMAKE_CXX_COMPILER_LAUNCHER:STRING=ccache \
           -DCLANG_TIDY_EXEC_NAME:STRING=clang-tidy-${CLANG_TIDY_VERSION} \
@@ -168,12 +166,12 @@ jobs:
             awk 'BEGIN{i=0}{print $0}{i++}END{print "Warnings: "i}' > clang-tidy-ci-report.txt
       - name: Ccache Report
         run: |
-          ls ~/.cache
-          ls ~/.cache/ccache
-          du -hs ~/.cache/ccache
-          ls ~/.cache/ctcache
-          du -hs ~/.cache/ctcache
-          ccache -s
+          ls ~/.cache || true
+          ls ~/.cache/ccache || true
+          du -hs ~/.cache/ccache || true
+          ls ~/.cache/ctcache || true
+          du -hs ~/.cache/ctcache || true
+          ccache -s || true
       - name: Full report
         working-directory: ${{runner.workspace}}/build-clang-tidy
         run: cat clang-tidy-full-report.txt