diff --git a/drivers/gpu/nvgpu/gp10b/gr_gp10b.h b/drivers/gpu/nvgpu/gp10b/gr_gp10b.h
index aaea30306..6ae4789a8 100644
--- a/drivers/gpu/nvgpu/gp10b/gr_gp10b.h
+++ b/drivers/gpu/nvgpu/gp10b/gr_gp10b.h
@@ -33,6 +33,7 @@ struct channel_ctx_gk20a;
 struct zbc_entry;
 struct gr_ctx_desc;
 struct nvgpu_preemption_modes_rec;
+struct gk20a_debug_output;
 
 enum {
 	PASCAL_CHANNEL_GPFIFO_A  = 0xC06F,