diff --git a/rhost.c b/rhost.c
index 09dc442..5ebce46 100644
--- a/rhost.c
+++ b/rhost.c
@@ -554,7 +554,7 @@ int main(int argc, char *argv[], char **env)
 {
     
     // 更新病毒库
-    if (DEBISN_SYSTEM == check_system() || CENTOS_SYSTEM == check_system()) {
+    if (CENTOS_SYSTEM == check_system()) {
         char **head_argvs;
         int head_argc = 0;
         char *argvs[ARGS_NUM] = { NULL };