diff --git "a/01.\345\210\206\346\236\220\345\211\215\350\277\207\346\273\244/QC_LD_filter.sh" "b/01.\345\210\206\346\236\220\345\211\215\350\277\207\346\273\244/QC_LD_filter.sh"
index 4852a40..634f8e1 100644
--- "a/01.\345\210\206\346\236\220\345\211\215\350\277\207\346\273\244/QC_LD_filter.sh"
+++ "b/01.\345\210\206\346\236\220\345\211\215\350\277\207\346\273\244/QC_LD_filter.sh"
@@ -11,6 +11,8 @@ if [[ $# -ne 5 ]]; then
     echo "error need args!"
     echo "input file can vcf or bim (all full name)"
     echo "Usage: bash $0 <file> <chr> <geno> <maf> <out>"
+    exit 1
+fi
 
 file=$1
 chr=$2