diff --git a/.github/workflows/check.yaml b/.github/workflows/check.yaml
index 75bf6f6..9c95ceb 100644
--- a/.github/workflows/check.yaml
+++ b/.github/workflows/check.yaml
@@ -21,7 +21,6 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        config:
         config:
           - {os: macos-latest,   r: 'release'}
           - {os: windows-latest, r: 'release'}