diff --git a/src/http/modules/ngx_http_fastcgi_module.c b/src/http/modules/ngx_http_fastcgi_module.c
index cc93570b1..2ab40fbfd 100644
--- a/src/http/modules/ngx_http_fastcgi_module.c
+++ b/src/http/modules/ngx_http_fastcgi_module.c
@@ -2697,11 +2697,8 @@ ngx_http_fastcgi_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child)
         return NGX_CONF_ERROR;
     }
 
-    if (conf->upstream.upstream == NULL) {
+    if (conf->upstream.upstream == NULL && conf->fastcgi_lengths == NULL) {
         conf->upstream.upstream = prev->upstream.upstream;
-    }
-
-    if (conf->fastcgi_lengths == NULL) {
         conf->fastcgi_lengths = prev->fastcgi_lengths;
         conf->fastcgi_values = prev->fastcgi_values;
     }
diff --git a/src/http/modules/ngx_http_proxy_module.c b/src/http/modules/ngx_http_proxy_module.c
index 78961babd..9ac86c003 100644
--- a/src/http/modules/ngx_http_proxy_module.c
+++ b/src/http/modules/ngx_http_proxy_module.c
@@ -2968,12 +2968,6 @@ ngx_http_proxy_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child)
 
     ngx_conf_merge_ptr_value(conf->cookie_paths, prev->cookie_paths, NULL);
 
-#if (NGX_HTTP_SSL)
-    if (conf->upstream.ssl == NULL) {
-        conf->upstream.ssl = prev->upstream.ssl;
-    }
-#endif
-
     ngx_conf_merge_uint_value(conf->http_version, prev->http_version,
                               NGX_HTTP_VERSION_10);
 
@@ -2997,14 +2991,16 @@ ngx_http_proxy_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child)
         return NGX_CONF_ERROR;
     }
 
-    if (conf->upstream.upstream == NULL) {
+    if (conf->upstream.upstream == NULL && conf->proxy_lengths == NULL) {
         conf->upstream.upstream = prev->upstream.upstream;
         conf->vars = prev->vars;
-    }
 
-    if (conf->proxy_lengths == NULL) {
         conf->proxy_lengths = prev->proxy_lengths;
         conf->proxy_values = prev->proxy_values;
+
+#if (NGX_HTTP_SSL)
+        conf->upstream.ssl = prev->upstream.ssl;
+#endif
     }
 
     if (conf->upstream.upstream || conf->proxy_lengths) {
diff --git a/src/http/modules/ngx_http_scgi_module.c b/src/http/modules/ngx_http_scgi_module.c
index 53a90d99a..49735bfde 100644
--- a/src/http/modules/ngx_http_scgi_module.c
+++ b/src/http/modules/ngx_http_scgi_module.c
@@ -1443,11 +1443,8 @@ ngx_http_scgi_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child)
         return NGX_CONF_ERROR;
     }
 
-    if (conf->upstream.upstream == NULL) {
+    if (conf->upstream.upstream == NULL && conf->scgi_lengths == NULL) {
         conf->upstream.upstream = prev->upstream.upstream;
-    }
-
-    if (conf->scgi_lengths == NULL) {
         conf->scgi_lengths = prev->scgi_lengths;
         conf->scgi_values = prev->scgi_values;
     }
diff --git a/src/http/modules/ngx_http_uwsgi_module.c b/src/http/modules/ngx_http_uwsgi_module.c
index d12fbdf7b..0dbcbf16a 100644
--- a/src/http/modules/ngx_http_uwsgi_module.c
+++ b/src/http/modules/ngx_http_uwsgi_module.c
@@ -1683,10 +1683,6 @@ ngx_http_uwsgi_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child)
         return NGX_CONF_ERROR;
     }
 
-    if (conf->upstream.ssl == NULL) {
-        conf->upstream.ssl = prev->upstream.ssl;
-    }
-
 #endif
 
     ngx_conf_merge_str_value(conf->uwsgi_string, prev->uwsgi_string, "");
@@ -1702,13 +1698,15 @@ ngx_http_uwsgi_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child)
         return NGX_CONF_ERROR;
     }
 
-    if (conf->upstream.upstream == NULL) {
+    if (conf->upstream.upstream == NULL && conf->uwsgi_lengths == NULL) {
         conf->upstream.upstream = prev->upstream.upstream;
-    }
 
-    if (conf->uwsgi_lengths == NULL) {
         conf->uwsgi_lengths = prev->uwsgi_lengths;
         conf->uwsgi_values = prev->uwsgi_values;
+
+#if (NGX_HTTP_SSL)
+        conf->upstream.ssl = prev->upstream.ssl;
+#endif
     }
 
     if (conf->upstream.upstream || conf->uwsgi_lengths) {