diff --git a/scripts/libs/set_config.sh b/scripts/libs/set_config.sh
index c0e0d82f..c1cf3e7d 100644
--- a/scripts/libs/set_config.sh
+++ b/scripts/libs/set_config.sh
@@ -1,9 +1,6 @@
 #参数1代表变量名，参数2代表变量值,参数3即文件路径
 setconfig() {
     [ -z "$3" ] && configpath="$CRASHDIR"/configs/ShellCrash.cfg || configpath="${3}"
-    if grep -q "^${1}=" "$configpath"; then
-        sed -i "s#^${1}=.*#${1}=${2}#g" "$configpath"
-    else
-        printf '%s=%s\n' "$1" "$2" >>"$configpath"
-    fi
+	sed -i "/^${1}=.*/d" "$configpath"
+	printf '%s=%s\n' "$1" "$2" >>"$configpath"
 }
\ No newline at end of file