diff --git a/.github/workflows/run_test.yml b/.github/workflows/run_test.yml
index 4dd3215..1932550 100644
--- a/.github/workflows/run_test.yml
+++ b/.github/workflows/run_test.yml
@@ -2,6 +2,9 @@ name: Run Tests
 
 on: [push, pull_request]
 
+env:
+  mkvtoolnix: C:\Program Files\MKVToolNix
+
 jobs:
   run-tests:
     name: "Test (${{matrix.os}}, Python ${{ matrix.python-version }})"
@@ -55,3 +58,4 @@ jobs:
         echo "{C:\Program Files\MKVToolNix}" >> $GITHUB_PATH
         echo "C:/Program Files/MKVToolNix" >> $GITHUB_PATH
         echo "$PATH"
+        mkvpropedit -h