diff --git a/package/pwm-gpio-custom/src/pwm-gpio-custom.c b/package/pwm-gpio-custom/src/pwm-gpio-custom.c
index 409bc9582d3..3a4d5b754aa 100644
--- a/package/pwm-gpio-custom/src/pwm-gpio-custom.c
+++ b/package/pwm-gpio-custom/src/pwm-gpio-custom.c
@@ -39,6 +39,7 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/platform_device.h>
+#include <linux/workqueue.h>
 
 #include <linux/pwm/pwm.h>