diff --git a/package/linux/dfhack b/package/linux/dfhack
index faea715d38..5500db7a8e 100755
--- a/package/linux/dfhack
+++ b/package/linux/dfhack
@@ -124,7 +124,7 @@ case "$1" in
     ;;
   *)
     TARGET=./dwarfort
-    if [ $SteamAppId = 2346660 ]; then
+    if [ "$SteamAppId" = 2346660 ]; then
       TARGET=hack/launchdf
     fi
     setarch "$setarch_arch" -R env LD_PRELOAD="${LD_PRELOAD:+$LD_PRELOAD:}$PRELOAD_LIB" $TARGET "$@"