diff --git a/src/http/modules/ngx_http_fastcgi_module.c b/src/http/modules/ngx_http_fastcgi_module.c
index 6e4d956..201ac2a 100644
--- a/src/http/modules/ngx_http_fastcgi_module.c
+++ b/src/http/modules/ngx_http_fastcgi_module.c
@@ -512,7 +512,7 @@
         return NGX_ERROR;
     }
 
-    if (u.addrs[0].sockaddr) {
+    if (u.addrs && u.addrs[0].sockaddr) {
         r->upstream->resolved->sockaddr = u.addrs[0].sockaddr;
         r->upstream->resolved->socklen = u.addrs[0].socklen;
         r->upstream->resolved->naddrs = 1;
diff --git a/src/http/modules/ngx_http_proxy_module.c b/src/http/modules/ngx_http_proxy_module.c
index 2bf58ab..e8c19bb 100644
--- a/src/http/modules/ngx_http_proxy_module.c
+++ b/src/http/modules/ngx_http_proxy_module.c
@@ -614,7 +614,7 @@
         return NGX_ERROR;
     }
 
-    if (u.addrs[0].sockaddr) {
+    if (u.addrs && u.addrs[0].sockaddr) {
         r->upstream->resolved->sockaddr = u.addrs[0].sockaddr;
         r->upstream->resolved->socklen = u.addrs[0].socklen;
         r->upstream->resolved->naddrs = 1;