diff --git a/sys/amd64/amd64/machdep.c b/sys/amd64/amd64/machdep.c
index ed4ebb55505b..e5eb21e7850a 100644
--- a/sys/amd64/amd64/machdep.c
+++ b/sys/amd64/amd64/machdep.c
@@ -107,9 +107,6 @@
 #include <machine/perfmon.h>
 #endif
 
-#ifdef OLD_BUS_ARCH
-#include <i386/isa/isa_device.h>
-#endif
 #include <i386/isa/icu.h>
 #include <i386/isa/intr_machdep.h>
 #include <isa/rtc.h>
diff --git a/sys/i386/i386/machdep.c b/sys/i386/i386/machdep.c
index ed4ebb55505b..e5eb21e7850a 100644
--- a/sys/i386/i386/machdep.c
+++ b/sys/i386/i386/machdep.c
@@ -107,9 +107,6 @@
 #include <machine/perfmon.h>
 #endif
 
-#ifdef OLD_BUS_ARCH
-#include <i386/isa/isa_device.h>
-#endif
 #include <i386/isa/icu.h>
 #include <i386/isa/intr_machdep.h>
 #include <isa/rtc.h>