diff --git a/nrf5/boards/pca10040/nrf52_hal_conf.h b/nrf5/boards/pca10040/nrf52_hal_conf.h
index e98a61e044..1ea1005c3c 100644
--- a/nrf5/boards/pca10040/nrf52_hal_conf.h
+++ b/nrf5/boards/pca10040/nrf52_hal_conf.h
@@ -6,6 +6,6 @@
 #define HAL_SPI_MODULE_ENABLED
 // #define HAL_SPIE_MODULE_ENABLED
 #define HAL_TIME_MODULE_ENABLED
-// #define HAL_PWM_MODULE_ENABLED
+#define HAL_PWM_MODULE_ENABLED
 
 #endif // NRF52_HAL_CONF_H__
diff --git a/nrf5/boards/pca10056/nrf52_hal_conf.h b/nrf5/boards/pca10056/nrf52_hal_conf.h
index 313954735a..3cfe4c0321 100644
--- a/nrf5/boards/pca10056/nrf52_hal_conf.h
+++ b/nrf5/boards/pca10056/nrf52_hal_conf.h
@@ -6,6 +6,6 @@
 // #define HAL_SPI_MODULE_ENABLED
 // #define HAL_SPIE_MODULE_ENABLED
 #define HAL_TIME_MODULE_ENABLED
-// #define HAL_PWM_MODULE_ENABLED
+#define HAL_PWM_MODULE_ENABLED
 
 #endif // NRF52_HAL_CONF_H__