diff --git a/README.md b/README.md
index 4de7a2f..fc76e90 100644
--- a/README.md
+++ b/README.md
@@ -35,6 +35,7 @@ Centos 7
     yum install clamav clamav-update clamav-lib clamav-devel json-c-devel pcre2-devel
     yum install iptables-devel libcurl-devel 
     yum install systemd-devel libtool-ltdl-devel libmspack-devel
+    yum install cmake3
   
     yum -y install centos-release-scl
     yum -y install devtoolset-11-gcc
diff --git a/nginx.c b/nginx.c
index 67d8427..34563b9 100644
--- a/nginx.c
+++ b/nginx.c
@@ -58,10 +58,14 @@ static int Handle_IP(char *string, conf *config)
             //printf(RED "%s Nginx Ip Address: %s, 属于地域白名单: %s\n" COLOR_NONE, t, IP, area);
         } else {
             my_printf(RED "%s Nginx 封禁 Ip Address: %s, 地址: %s!!!\n" COLOR_NONE, t, IP, area);
+            
             nginx_iptc(IP);
         }
     }
 
+    if (t)
+        free(t);
+
     return 0;
 }
 
diff --git a/rule.c b/rule.c
index d9fa386..56413e6 100644
--- a/rule.c
+++ b/rule.c
@@ -33,7 +33,6 @@ static int Handle_IP(conf *conf, char *ip)
 
         if (conf->REGION == 1) {
             if (conf->IP2REGION == 1) {
-                //printf("%s Use ip2region !!!\n", t);
 
                 if (access(xdb_path, F_OK) == -1) {
                     xdb_path = "ip2region/ip2region.xdb";
@@ -67,6 +66,9 @@ BLOCKED:
         if (area != NULL) {
             free(area);
         }
+
+        if (t)
+            free(t);
     }
 
     return 0;