diff --git a/src/http/modules/ngx_http_gzip_filter_module.c b/src/http/modules/ngx_http_gzip_filter_module.c
index 287fd36..73b6d89 100644
--- a/src/http/modules/ngx_http_gzip_filter_module.c
+++ b/src/http/modules/ngx_http_gzip_filter_module.c
@@ -1084,10 +1084,6 @@
     ngx_uint_t            zint, zfrac;
     ngx_http_gzip_ctx_t  *ctx;
 
-    v->valid = 1;
-    v->no_cacheable = 0;
-    v->not_found = 0;
-
     ctx = ngx_http_get_module_ctx(r, ngx_http_gzip_filter_module);
 
     if (ctx == NULL || ctx->zout == 0) {
@@ -1095,6 +1091,10 @@
         return NGX_OK;
     }
 
+    v->valid = 1;
+    v->no_cacheable = 0;
+    v->not_found = 0;
+
     v->data = ngx_pnalloc(r->pool, NGX_INT32_LEN + 3);
     if (v->data == NULL) {
         return NGX_ERROR;