diff --git a/lib/devmem_is_allowed.c b/lib/devmem_is_allowed.c
index 60be9e24bd57..9c060c69f134 100644
--- a/lib/devmem_is_allowed.c
+++ b/lib/devmem_is_allowed.c
@@ -10,6 +10,7 @@
 
 #include <linux/mm.h>
 #include <linux/ioport.h>
+#include <linux/io.h>
 
 /*
  * devmem_is_allowed() checks to see if /dev/mem access to a certain address