diff --git a/patches/nginx-1.13.6-daemon-destroy-pool.patch b/patches/nginx-1.13.6-daemon-destroy-pool.patch
new file mode 100644
index 0000000..5690b88
--- /dev/null
+++ b/patches/nginx-1.13.6-daemon-destroy-pool.patch
@@ -0,0 +1,12 @@
+diff --git a/src/os/unix/ngx_daemon.c b/src/os/unix/ngx_daemon.c
+index ab672110..f259af31 100644
+--- a/src/os/unix/ngx_daemon.c
++++ b/src/os/unix/ngx_daemon.c
+@@ -23,6 +23,8 @@ ngx_daemon(ngx_log_t *log)
+         break;
+
+     default:
++        /* just to make it ASAN or Valgrind clean */
++        ngx_destroy_pool(ngx_cycle->pool);
+         exit(0);
+     }
diff --git a/util/mirror-tarballs b/util/mirror-tarballs
index ce36b85..c5a848f 100755
--- a/util/mirror-tarballs
+++ b/util/mirror-tarballs
@@ -65,6 +65,10 @@ if [ "$answer" = "Y" ]; then
     echo "$info_txt applying the resolver_conf_parsing patch for nginx"
     patch -p1 < $root/patches/nginx-$main_ver-resolver_conf_parsing.patch || exit 1
     echo
+
+    echo "$info_txt applying the daemon-destroy-pool patch for nginx"
+    patch -p1 < $root/patches/nginx-$main_ver-daemon-destroy-pool.patch || exit 1
+    echo
 fi
 
 answer=`$root/util/ver-ge "$main_ver" 1.5.12`