diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 89b387e6f..d5c6ab7a0 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -73,6 +73,7 @@ jobs:
       run: |
         coveralls
       env:
+        COVERALLS_FLAG_NAME: ${{ matrix.type }}
         COVERALLS_PARALLEL: true
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
   # Send notification when all tests have finished to combine coverage results