diff --git a/drivers/devfreq/Makefile b/drivers/devfreq/Makefile
index 51acbbc2..51d27acb 100644
--- a/drivers/devfreq/Makefile
+++ b/drivers/devfreq/Makefile
@@ -1,5 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0-only
 # Copyright (c) 2022-2023, NVIDIA CORPORATION.  All rights reserved.
 
+ifeq ($(findstring ack_src,$(NV_BUILD_KERNEL_OPTIONS)),)
 obj-m   += tegra_wmark.o
+endif
 obj-m   += governor_pod_scaling.o