diff --git a/conf/any-emu.rmk b/conf/any-emu.rmk
index 958da2bee..8272bf25e 100644
--- a/conf/any-emu.rmk
+++ b/conf/any-emu.rmk
@@ -70,6 +70,30 @@ usbms_mod_SOURCES = disk/usbms.c
 usbms_mod_CFLAGS = $(COMMON_CFLAGS)
 usbms_mod_LDFLAGS = $(COMMON_LDFLAGS)
 
+# For serial.mod.
+pkglib_MODULES += usbserial_common.mod
+usbserial_common_mod_SOURCES = bus/usb/serial/common.c
+usbserial_common_mod_CFLAGS = $(COMMON_CFLAGS)
+usbserial_common_mod_LDFLAGS = $(COMMON_LDFLAGS)
+
+# For serial.mod.
+pkglib_MODULES += usbserial_pl2303.mod
+usbserial_pl2303_mod_SOURCES = bus/usb/serial/pl2303.c
+usbserial_pl2303_mod_CFLAGS = $(COMMON_CFLAGS)
+usbserial_pl2303_mod_LDFLAGS = $(COMMON_LDFLAGS)
+
+# For serial.mod.
+pkglib_MODULES += usbserial_ftdi.mod
+usbserial_ftdi_mod_SOURCES = bus/usb/serial/ftdi.c
+usbserial_ftdi_mod_CFLAGS = $(COMMON_CFLAGS)
+usbserial_ftdi_mod_LDFLAGS = $(COMMON_LDFLAGS)
+
+# For serial.mod.
+pkglib_MODULES += serial.mod
+serial_mod_SOURCES = term/serial.c
+serial_mod_CFLAGS = $(COMMON_CFLAGS)
+serial_mod_LDFLAGS = $(COMMON_LDFLAGS)
+
 grub_emu_LDFLAGS += $(LIBUSB)
 endif