diff --git a/src/DEBIAN/preinst b/src/DEBIAN/preinst
index 6162c47..c61a2bd 100755
--- a/src/DEBIAN/preinst
+++ b/src/DEBIAN/preinst
@@ -1,5 +1,7 @@
 #!/bin/bash
 
+PACKAGE_NAME="$DPKG_MAINTSCRIPT_PACKAGE"
+
 if [ "${PACKAGE_NAME}" = "cn.flamescion.bookworm-compatibility-mode" ];then
 if [ -e /opt/apps/cn.flamescion.bookworm-compatibility-mode/files/bookworm-env ];then
 if [ "$(arch)" != "loongarch64" ];then
@@ -9,4 +11,4 @@ else
 mv /opt/apps/cn.flamescion.bookworm-compatibility-mode/files/bookworm-env /opt/apps/amber-ce-loongnix/files/ace-env 
 fi
 fi
-fi
\ No newline at end of file
+fi