diff --git a/drivers/devfreq/Makefile b/drivers/devfreq/Makefile
index 2e2d2063..ad0e67fe 100644
--- a/drivers/devfreq/Makefile
+++ b/drivers/devfreq/Makefile
@@ -1,3 +1,4 @@
+ccflags-y += -I$(srctree)/drivers/devfreq
 obj-$(CONFIG_DEVFREQ_GOV_POD_SCALING)   += governor_pod_scaling.o
 obj-$(CONFIG_DEVFREQ_GOV_WMARK_SIMPLE)  += governor_wmark_simple.o
 obj-$(CONFIG_DEVFREQ_GOV_WMARK_ACTIVE)  += governor_wmark_active.o