diff --git a/sys/pc98/cbus/scgdcrndr.c b/sys/pc98/cbus/scgdcrndr.c
index 292aba7d7de7..abebc75801a3 100644
--- a/sys/pc98/cbus/scgdcrndr.c
+++ b/sys/pc98/cbus/scgdcrndr.c
@@ -32,6 +32,7 @@
 #include <sys/param.h>
 #include <sys/systm.h>
 #include <sys/kernel.h>
+#include <sys/module.h>
 #include <sys/fbio.h>
 #include <sys/consio.h>
 
diff --git a/sys/pc98/cbus/scterm-sck.c b/sys/pc98/cbus/scterm-sck.c
index 63a08aa26ee7..b1e006a55826 100644
--- a/sys/pc98/cbus/scterm-sck.c
+++ b/sys/pc98/cbus/scterm-sck.c
@@ -31,6 +31,7 @@
 #include <sys/param.h>
 #include <sys/systm.h>
 #include <sys/kernel.h>
+#include <sys/module.h>
 #include <sys/consio.h>
 
 #include <machine/pc/display.h>
diff --git a/sys/pc98/pc98/scgdcrndr.c b/sys/pc98/pc98/scgdcrndr.c
index 292aba7d7de7..abebc75801a3 100644
--- a/sys/pc98/pc98/scgdcrndr.c
+++ b/sys/pc98/pc98/scgdcrndr.c
@@ -32,6 +32,7 @@
 #include <sys/param.h>
 #include <sys/systm.h>
 #include <sys/kernel.h>
+#include <sys/module.h>
 #include <sys/fbio.h>
 #include <sys/consio.h>
 
diff --git a/sys/pc98/pc98/scterm-sck.c b/sys/pc98/pc98/scterm-sck.c
index 63a08aa26ee7..b1e006a55826 100644
--- a/sys/pc98/pc98/scterm-sck.c
+++ b/sys/pc98/pc98/scterm-sck.c
@@ -31,6 +31,7 @@
 #include <sys/param.h>
 #include <sys/systm.h>
 #include <sys/kernel.h>
+#include <sys/module.h>
 #include <sys/consio.h>
 
 #include <machine/pc/display.h>