diff --git a/packages/ludic.render3d/gpu_vk_draw.ludic b/packages/ludic.render3d/gpu_vk_draw.ludic
index 93d4b7a1..6737f4a1 100644
--- a/packages/ludic.render3d/gpu_vk_draw.ludic
+++ b/packages/ludic.render3d/gpu_vk_draw.ludic
@@ -400,6 +400,7 @@ function gvk_layout_key(m: Mesh) -> string {
 # The pipeline for program p drawing mesh m (null for a draw without vertex input, like the
 # full-screen triangle) with state st into a pass of n_color colour attachments of format
 # color_fmt, a depth attachment of depth_fmt (VK_FORMAT_UNDEFINED for none) at `samples`.
+@creates(Pipeline)
 function gvk_pipeline(render3d_st: mut Render3dState, p: int, m: Mesh, st: GvkState, n_color: int, color_fmt: int, depth_fmt: int, samples: int) -> long {
   let zero: long = 0
   let v = render3d_st.gvk_prog_var[p]