diff --git a/c/src/lib/libbsp/sparc/shared/drvmgr/ambapp_bus.c b/c/src/lib/libbsp/sparc/shared/drvmgr/ambapp_bus.c
index c48d12d247..23335d4a4b 100644
--- a/c/src/lib/libbsp/sparc/shared/drvmgr/ambapp_bus.c
+++ b/c/src/lib/libbsp/sparc/shared/drvmgr/ambapp_bus.c
@@ -25,6 +25,7 @@
 
 #include <bsp.h>
 #include <ambapp.h>
+#include <rtems/bspIo.h>
 
 /*#define DEBUG 1*/
 #define DBG(args...)