diff --git a/.github/actions/test/action.yml b/.github/actions/test/action.yml
index e4af64d0..e2e6c008 100644
--- a/.github/actions/test/action.yml
+++ b/.github/actions/test/action.yml
@@ -57,7 +57,7 @@ runs:
         npm ci
 
         # as the shrinkwrap might have been done on mac/linux, this is ensure the package is there for windows
-        if [[runner.os == 'Windows']]; then
+        if [[ $RUNNER_OS == 'Windows']]; then
           npm install winusb-driver-generator
         fi