diff --git a/include/nuttx/timers/oneshot.h b/include/nuttx/timers/oneshot.h
index 6c486ca1cf..848d517c28 100644
--- a/include/nuttx/timers/oneshot.h
+++ b/include/nuttx/timers/oneshot.h
@@ -33,6 +33,7 @@
 #include <stdint.h>
 #include <time.h>
 
+#include <nuttx/clock.h>
 #include <nuttx/fs/ioctl.h>
 
 /****************************************************************************