diff --git a/drivers/s390/char/Makefile b/drivers/s390/char/Makefile
index 7e73e39..efb500a 100644
--- a/drivers/s390/char/Makefile
+++ b/drivers/s390/char/Makefile
@@ -16,6 +16,7 @@
 obj-$(CONFIG_SCLP_CONSOLE) += sclp_con.o
 obj-$(CONFIG_SCLP_VT220_TTY) += sclp_vt220.o
 obj-$(CONFIG_SCLP_CPI) += sclp_cpi.o
+obj-$(CONFIG_SCLP_ASYNC) += sclp_async.o
 
 obj-$(CONFIG_ZVM_WATCHDOG) += vmwatchdog.o
 obj-$(CONFIG_VMLOGRDR) += vmlogrdr.o