diff --git a/sysdeps/unix/sysv/linux/s390/Makefile b/sysdeps/unix/sysv/linux/s390/Makefile
index 7ca98f0ebe..f211840444 100644
--- a/sysdeps/unix/sysv/linux/s390/Makefile
+++ b/sysdeps/unix/sysv/linux/s390/Makefile
@@ -1,4 +1,8 @@
 ifeq ($(subdir),misc)
 sysdep_routines += setfsgid setfsuid setresgid setresuid
-sysdep_headers += sys/elf.h sys/reg.h
+sysdep_headers += sys/elf.h
+endif
+
+ifeq ($(subdir),csu)
+CFLAGS-initfini.s += -DWEAK_GMON_START
 endif