diff --git a/sysdeps/htl/include/pthread.h b/sysdeps/htl/include/pthread.h
index a9c0e58b00..f040c2f957 100644
--- a/sysdeps/htl/include/pthread.h
+++ b/sysdeps/htl/include/pthread.h
@@ -1,6 +1,9 @@
 #ifndef	_PTHREAD_H
 #include_next <pthread.h>
 #ifndef _ISOMAC
+
+# define ARCH_MIN_GUARD_SIZE 0
+
 # if defined __USE_EXTERN_INLINES && defined _LIBC && !IS_IN (libsupport)
 #  include <bits/spin-lock-inline.h>