diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e17abf9..4cefa92 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -21,5 +21,7 @@ jobs:
       uses: actions/checkout@v1
     - name: Prepare FFMpeg
       uses: FedericoCarboni/setup-ffmpeg@v1-beta
+    - name: FFMpeg formats
+      run: ffmpeg -formats
     - name: Test with dotnet
       run: dotnet test --logger GitHubActions