diff --git a/c/src/lib/libcpu/m68k/mcf5206/clock/ckinit.c b/c/src/lib/libcpu/m68k/mcf5206/clock/ckinit.c
index c28c541a06..80962a1d58 100644
--- a/c/src/lib/libcpu/m68k/mcf5206/clock/ckinit.c
+++ b/c/src/lib/libcpu/m68k/mcf5206/clock/ckinit.c
@@ -23,6 +23,7 @@
 #include <stdlib.h>
 #include <bsp.h>
 #include <rtems/libio.h>
+#include <rtems/clockdrv.h>
 #include "mcf5206/mcf5206e.h"
 
 /*