diff --git a/.github/workflows/linux_llvm_cov.yml b/.github/workflows/linux_llvm_cov.yml
index a598a6ed..ada0f878 100644
--- a/.github/workflows/linux_llvm_cov.yml
+++ b/.github/workflows/linux_llvm_cov.yml
@@ -40,7 +40,7 @@ jobs:
           ./test_time_util
           
           llvm-profdata merge -sparse test_cinatra-*.profraw -o test_cinatra.profdata
-          llvm-cov show test_cinatra test_corofile test_time_util test_http_parse -instr-profile=test_cinatra.profdata -format=html -output-dir=../.coverage_llvm_cov -ignore-filename-regex="example|asio|cmdline|async_simple|tests" -show-instantiations=false
+          llvm-cov show test_cinatra -object test_corofile -object test_time_util -object test_http_parse -instr-profile=test_cinatra.profdata -format=html -output-dir=../.coverage_llvm_cov -ignore-filename-regex="example|asio|cmdline|async_simple|tests" -show-instantiations=false
           echo "Done!"
 
       - name: Upload Coverage Results
@@ -55,7 +55,7 @@ jobs:
           echo "Code Coverage Report" > tmp.log
           echo "for detail, [goto summary](https://github.com/${{ github.repository_owner }}/${{ github.event.repository.name }}/actions/runs/${{github.run_id}}) download Artifacts `llvm-cov`" >> tmp.log
           echo "\`\`\`" >> tmp.log
-          llvm-cov report test_cinatra test_corofile test_time_util test_http_parse -instr-profile=test_cinatra.profdata -ignore-filename-regex="example|asio|cmdline|async_simple|tests" -show-region-summary=false >> tmp.log
+          llvm-cov report test_cinatra -object test_corofile -object test_time_util -object test_http_parse -instr-profile=test_cinatra.profdata -ignore-filename-regex="example|asio|cmdline|async_simple|tests" -show-region-summary=false >> tmp.log
           echo "\`\`\`" >> tmp.log
 
       - name: Create Comment