diff --git a/src/http/modules/perl/ngx_http_perl_module.c b/src/http/modules/perl/ngx_http_perl_module.c
index a383e90..81b2526 100644
--- a/src/http/modules/perl/ngx_http_perl_module.c
+++ b/src/http/modules/perl/ngx_http_perl_module.c
@@ -778,6 +778,8 @@
             return NGX_ERROR;
         }
 
+        ctx->redirect_uri.len = 0;
+
         return NGX_HTTP_INTERNAL_SERVER_ERROR;
     }