diff --git a/.github/Modun/META-INF/com/google/android/update-binary b/.github/Modun/META-INF/com/google/android/update-binary
index 3b9c26b..980dbe5 100644
--- a/.github/Modun/META-INF/com/google/android/update-binary
+++ b/.github/Modun/META-INF/com/google/android/update-binary
@@ -25,7 +25,7 @@ ZIPFILE=$3
 
 mount /data 2>/dev/null
 
-if [ -f /data/adb/magisk/util_functions.sh ] && [ "BOOTCLASSPATH" ];then
+if [ -f /data/adb/magisk/util_functions.sh ] && [ "$BOOTCLASSPATH" ];then
 . /data/adb/magisk/util_functions.sh
 [ $MAGISK_VER_CODE -lt 20400 ] && require_new_magisk
 install_module