diff --git a/drivers/sensors/hdc1008.c b/drivers/sensors/hdc1008.c
index 674964d118..966eac68c3 100644
--- a/drivers/sensors/hdc1008.c
+++ b/drivers/sensors/hdc1008.c
@@ -35,6 +35,7 @@
 #include <nuttx/i2c/i2c_master.h>
 #include <nuttx/sensors/hdc1008.h>
 #include <nuttx/random.h>
+#include <nuttx/signal.h>
 
 #if defined(CONFIG_I2C) && defined(CONFIG_SENSORS_HDC1008)