diff --git a/libraries/AP_HAL_Linux/RCInput_RPI.h b/libraries/AP_HAL_Linux/RCInput_RPI.h
index 04808af443..68121d4894 100644
--- a/libraries/AP_HAL_Linux/RCInput_RPI.h
+++ b/libraries/AP_HAL_Linux/RCInput_RPI.h
@@ -11,7 +11,6 @@
 #include <errno.h>
 #include <stdarg.h>
 #include <stdint.h>
-#include <signal.h>
 #include <time.h>
 #include <sys/time.h>
 #include <sys/types.h>