diff --git a/src/superio/winbond/w83627dhg/w83627dhg.h b/src/superio/winbond/w83627dhg/w83627dhg.h
index a527e1726c..53704370cb 100644
--- a/src/superio/winbond/w83627dhg/w83627dhg.h
+++ b/src/superio/winbond/w83627dhg/w83627dhg.h
@@ -18,6 +18,8 @@
 #ifndef SUPERIO_WINBOND_W83627DHG_H
 #define SUPERIO_WINBOND_W83627DHG_H
 
+#include <arch/io.h>
+
 #define W83627DHG_FDC              0   /* Floppy */
 #define W83627DHG_PP               1   /* Parallel port */
 #define W83627DHG_SP1              2   /* Com1 */
diff --git a/src/superio/winbond/w83627ehg/w83627ehg.h b/src/superio/winbond/w83627ehg/w83627ehg.h
index fe93a62a1a..5b760f2e71 100644
--- a/src/superio/winbond/w83627ehg/w83627ehg.h
+++ b/src/superio/winbond/w83627ehg/w83627ehg.h
@@ -18,6 +18,8 @@
 #ifndef SUPERIO_WINBOND_W83627EHG_H
 #define SUPERIO_WINBOND_W83627EHG_H
 
+#include <arch/io.h>
+
 #define W83627EHG_FDC              0   /* Floppy */
 #define W83627EHG_PP               1   /* Parallel port */
 #define W83627EHG_SP1              2   /* Com1 */
diff --git a/src/superio/winbond/w83627thg/w83627thg.h b/src/superio/winbond/w83627thg/w83627thg.h
index 92fbd27cdc..acea3826e9 100644
--- a/src/superio/winbond/w83627thg/w83627thg.h
+++ b/src/superio/winbond/w83627thg/w83627thg.h
@@ -19,6 +19,8 @@
 #ifndef SUPERIO_WINBOND_W83627THG_W83627THG_H
 #define SUPERIO_WINBOND_W83627THG_W83627THG_H
 
+#include <arch/io.h>
+
 #define W83627THG_FDC              0   /* Floppy */
 #define W83627THG_PP               1   /* Parallel port */
 #define W83627THG_SP1              2   /* Com1 */
diff --git a/src/superio/winbond/wpcd376i/wpcd376i.h b/src/superio/winbond/wpcd376i/wpcd376i.h
index bc202f0f17..b894e4e0c7 100644
--- a/src/superio/winbond/wpcd376i/wpcd376i.h
+++ b/src/superio/winbond/wpcd376i/wpcd376i.h
@@ -18,6 +18,8 @@
 #ifndef SUPERIO_WINBOND_WPCD376I_WPCD376I_H
 #define SUPERIO_WINBOND_WPCD376I_WPCD376I_H
 
+#include <arch/io.h>
+
 /* Logical Device Numbers (LDN). */
 #define WPCD376I_FDC	0	/* Floppy */
 #define WPCD376I_LPT	1	/* Parallel port */