diff --git a/src/http/modules/perl/nginx.xs b/src/http/modules/perl/nginx.xs
index ad12632..848e501 100644
--- a/src/http/modules/perl/nginx.xs
+++ b/src/http/modules/perl/nginx.xs
@@ -147,6 +147,8 @@
         }
     }
 
+    r->disable_not_modified = 1;
+
     (void) ngx_http_send_header(r);