diff --git a/drivers/s390/char/Makefile b/drivers/s390/char/Makefile
index 05ac6ba15a53..614b44e70a28 100644
--- a/drivers/s390/char/Makefile
+++ b/drivers/s390/char/Makefile
@@ -17,6 +17,8 @@ CFLAGS_REMOVE_sclp_early_core.o	+= $(CC_FLAGS_MARCH)
 CFLAGS_sclp_early_core.o		+= -march=z900
 endif
 
+CFLAGS_sclp_early_core.o		+= -D__NO_FORTIFY
+
 obj-y += ctrlchar.o keyboard.o defkeymap.o sclp.o sclp_rw.o sclp_quiesce.o \
 	 sclp_cmd.o sclp_config.o sclp_cpi_sys.o sclp_ocf.o sclp_ctl.o \
 	 sclp_early.o sclp_early_core.o