diff --git a/platform/esb/dev/ctsrts-sensor.c b/platform/esb/dev/ctsrts-sensor.c
index 35b9b1637..22c82e930 100644
--- a/platform/esb/dev/ctsrts-sensor.c
+++ b/platform/esb/dev/ctsrts-sensor.c
@@ -43,7 +43,6 @@
 #include "dev/ctsrts-sensor.h"
 #include "dev/irq.h"
 #include "dev/hwconf.h"
-#include <signal.h>
 
 const struct sensors_sensor ctsrts_sensor;