diff --git a/build.sh b/build.sh
index b90a08f..4ea32d4 100755
--- a/build.sh
+++ b/build.sh
@@ -27,10 +27,18 @@ test_option="no"
 case_id=21
 ape_core_mask=0xf
 platform_build_data=0x20230926
-spu_version=`git log -1 --format="%H"`
-spu_tag=`git tag | sed -n '$p'`
+spu_version=`git log --decorate -1 | sed -n '1p' | awk '{print substr($2,0)}'`
 spu_build_date=`date +"%Y-%m-%d-%H:%M:%S"`
 
+#判断tag是否存在
+if [ -z `git log --decorate -1 | grep -oP '(?<=tag: ).*'` ]
+    then
+        spu_tag="NULL";
+    else
+        spu_tag=`git log --decorate -1 | grep -oP '(?<=tag: ).*'`
+        spu_tag=${spu_tag%?}
+fi
+
 while [[ "$#" > 0 ]]; do
     case $1 in
         --debug) debug_option="yes"; shift;;