diff --git a/src/http/modules/ngx_http_grpc_module.c b/src/http/modules/ngx_http_grpc_module.c
index 0b8bb52..aa75765 100644
--- a/src/http/modules/ngx_http_grpc_module.c
+++ b/src/http/modules/ngx_http_grpc_module.c
@@ -1969,6 +1969,7 @@
         }
 
         u->length = 0;
+        ctx->done = 1;
 
     } else {
         u->length = 1;