diff --git a/drivers/net/dnet.c b/drivers/net/dnet.c
index 1b4063222a82dd010dcbd9944a4e005438636ba0..edf23c9ea63c669daaca2108723b5b374c3e059d 100644
--- a/drivers/net/dnet.c
+++ b/drivers/net/dnet.c
@@ -9,6 +9,7 @@
  * published by the Free Software Foundation.
  */
 #include <linux/version.h>
+#include <linux/io.h>
 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/kernel.h>