--- a/src/core/ngx_cycle.c
+++ b/src/core/ngx_cycle.c
@@ -666,6 +666,24 @@ old_shm_zone_done:
                           ngx_close_socket_n " listening socket on %V failed",
                           &ls[i].addr_text);
         }
+
+#if (NGX_HAVE_UNIX_DOMAIN)
+
+        if (ls[i].sockaddr->sa_family == AF_UNIX) {
+            u_char  *name;
+
+            name = ls[i].addr_text.data + sizeof("unix:") - 1;
+
+            ngx_log_error(NGX_LOG_WARN, cycle->log, 0,
+                          "deleting socket %s", name);
+
+            if (ngx_delete_file(name) == -1) {
+                ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_socket_errno,
+                              ngx_delete_file_n " %s failed", name);
+            }
+        }
+
+#endif
     }
 
 
@@ -835,6 +853,9 @@ ngx_cmp_sockaddr(struct sockaddr *sa1, s
 #if (NGX_HAVE_INET6)
     struct sockaddr_in6  *sin61, *sin62;
 #endif
+#if (NGX_HAVE_UNIX_DOMAIN)
+    struct sockaddr_un   *saun1, *saun2;
+#endif
 
     if (sa1->sa_family != sa2->sa_family) {
         return NGX_DECLINED;
@@ -858,6 +879,21 @@ ngx_cmp_sockaddr(struct sockaddr *sa1, s
         break;
 #endif
 
+#if (NGX_HAVE_UNIX_DOMAIN)
+    case AF_UNIX:
+       saun1 = (struct sockaddr_un *) sa1;
+       saun2 = (struct sockaddr_un *) sa2;
+
+       if (ngx_memcmp(&saun1->sun_path, &saun2->sun_path,
+                      sizeof(saun1->sun_path))
+           != 0)
+       {
+           return NGX_DECLINED;
+       }
+
+       break;
+#endif
+
     default: /* AF_INET */
 
         sin1 = (struct sockaddr_in *) sa1;