diff --git a/.github/workflows/coverage.yml b/.github/workflows/coverage.yml
index 829378773..8e2ab1675 100644
--- a/.github/workflows/coverage.yml
+++ b/.github/workflows/coverage.yml
@@ -75,14 +75,14 @@ jobs:
     - name: Gather coverage
       run: |
         cd ${{github.workspace}}
-        gcovr --html coverage.html --gcov-ignore-parse-errors --gcov-executable "llvm-cov gcov" .
+        gcovr --html coverage.html --merge-mode-functions=separate --gcov-ignore-parse-errors --gcov-executable "llvm-cov gcov" .
         cd -
 
     - name: Gather detailed coverage
       run: |
         cd ${{github.workspace}}
         mkdir cov-details
-        gcovr --html-details ${{env.COV_DETAILS_PATH}}/coverage.html --gcov-ignore-parse-errors --gcov-executable "llvm-cov gcov" -r `pwd`/src --object-directory `pwd`/build
+        gcovr --html-details ${{env.COV_DETAILS_PATH}}/coverage.html --merge-mode-functions=separate --gcov-ignore-parse-errors --gcov-executable "llvm-cov gcov" -r `pwd`/src --object-directory `pwd`/build
         cd -
 
     - name: Get date