diff --git a/ngx_rtmp_core_module.c b/ngx_rtmp_core_module.c
index 567f011..f1f9e94 100644
--- a/ngx_rtmp_core_module.c
+++ b/ngx_rtmp_core_module.c
@@ -504,6 +504,7 @@ ngx_rtmp_core_listen(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
     struct sockaddr            *sa;
     ngx_rtmp_listen_t          *ls;
     struct sockaddr_in         *sin;
+    u_char                     *sa_cp;
     ngx_rtmp_core_main_conf_t  *cmcf;
 #if (NGX_HAVE_INET6)
     struct sockaddr_in6        *sin6;
@@ -558,7 +559,8 @@ ngx_rtmp_core_listen(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
         }
 
 #if (nginx_version >= 1011000)
-        if (ngx_memcmp(ls[i].sockaddr + off, &u.sockaddr + off, len) != 0) {
+        sa_cp = (u_char *)(&u.sockaddr);
+        if (ngx_memcmp(ls[i].sockaddr + off, sa_cp + off, len) != 0) {
 #else
         if (ngx_memcmp(ls[i].sockaddr + off, u.sockaddr + off, len) != 0) {
 #endif
@@ -582,7 +584,8 @@ ngx_rtmp_core_listen(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
     ngx_memzero(ls, sizeof(ngx_rtmp_listen_t));
 
 #if (nginx_version >= 1011000)
-    ngx_memcpy(ls->sockaddr, &u.sockaddr, u.socklen);
+    sa_cp = (u_char *)(&u.sockaddr);
+    ngx_memcpy(ls->sockaddr, sa_cp, u.socklen);
 #else
     ngx_memcpy(ls->sockaddr, u.sockaddr, u.socklen);
 #endif
@@ -600,7 +603,6 @@ ngx_rtmp_core_listen(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
 
         if (ngx_strncmp(value[i].data, "ipv6only=o", 10) == 0) {
 #if (NGX_HAVE_INET6 && defined IPV6_V6ONLY)
-            struct sockaddr  *sa;
             u_char            buf[NGX_SOCKADDR_STRLEN];
 
             sa = (struct sockaddr *) ls->sockaddr;