diff --git a/sys/i386/isa/isa_compat.h b/sys/i386/isa/isa_compat.h
index 6b3e01b64f54..e7883e2f7cab 100644
--- a/sys/i386/isa/isa_compat.h
+++ b/sys/i386/isa/isa_compat.h
@@ -99,6 +99,7 @@ struct old_isa_driver {
 
 extern struct isa_driver  vtdriver;
 extern struct isa_driver advdriver;
+extern struct isa_driver ahadriver;
 extern struct isa_driver wdcdriver;
 extern struct isa_driver msedriver;
 extern struct isa_driver  ardriver;
@@ -312,6 +313,10 @@ static struct old_isa_driver old_drivers[] = {
 #endif
 #endif
 
+#if NAHA > 0
+	{ INTR_TYPE_CAM, &ahadriver },
+#endif
+
 #ifdef PC98
 #if NBS > 0
 	{ INTR_TYPE_CAM, &bsdriver },