diff --git a/drivers/gpu/nvgpu/gv11b/dbg_gpu_gv11b.c b/drivers/gpu/nvgpu/gv11b/dbg_gpu_gv11b.c
index ad50025f1..2fdfc8f48 100644
--- a/drivers/gpu/nvgpu/gv11b/dbg_gpu_gv11b.c
+++ b/drivers/gpu/nvgpu/gv11b/dbg_gpu_gv11b.c
@@ -64,7 +64,9 @@ int gv11b_perfbuf_enable_locked(struct gk20a *g, u64 offset, u32 size)
 	gk20a_writel(g, perf_pmasys_mem_block_r(),
 			perf_pmasys_mem_block_base_f(inst_pa_page) |
 			perf_pmasys_mem_block_valid_true_f() |
-			perf_pmasys_mem_block_target_sys_ncoh_f());
+			nvgpu_aperture_mask(g, &mm->perfbuf.inst_block,
++                               perf_pmasys_mem_block_target_sys_ncoh_f(),
++                               perf_pmasys_mem_block_target_lfb_f()));
 
 	gk20a_idle(g);
 	return 0;