diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index 72ea4e3..e667328 100644
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -18,8 +18,9 @@ jobs:
           - 'latest'
     runs-on: ${{ matrix.os }}
 
-    # Workaround for path length errors during precompilation of longer repo names
-    TMPDIR: /tmp
+    env:
+      # Workaround for path length errors during precompilation of longer repo names
+      TMPDIR: /tmp
 
     steps:
       - uses: actions/checkout@v3