diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e725f16..89f5ffa 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -78,9 +78,9 @@ jobs:
         set -x
         set -o pipefail
         # wine now needs the file extension on the executable when specified by path
-        EXE="$1".exe
+        EXE="\$1".exe
         shift
-        ls -l "$EXE"
+        ls -l "\$EXE"
         # Show all errors except for the ones about querying the display
         WINEDEBUG=-all,err+all,-winediag,-systray wine "\$EXE" "\$@" |& dos2unix
         EOF