diff --git a/arch/s390x/bits/fcntl.h b/arch/s390x/bits/fcntl.h
index 1eca6ba5..a231efb4 100644
--- a/arch/s390x/bits/fcntl.h
+++ b/arch/s390x/bits/fcntl.h
@@ -38,3 +38,6 @@
 #define F_GETOWN_EX 16
 
 #define F_GETOWNER_UIDS 17
+
+#define POSIX_FADV_DONTNEED   6
+#define POSIX_FADV_NOREUSE    7
diff --git a/include/fcntl.h b/include/fcntl.h
index 4d91338b..f6c192f5 100644
--- a/include/fcntl.h
+++ b/include/fcntl.h
@@ -66,8 +66,10 @@ int posix_fallocate(int, off_t, off_t);
 #define POSIX_FADV_RANDOM     1
 #define POSIX_FADV_SEQUENTIAL 2
 #define POSIX_FADV_WILLNEED   3
+#ifndef POSIX_FADV_DONTNEED
 #define POSIX_FADV_DONTNEED   4
 #define POSIX_FADV_NOREUSE    5
+#endif
 
 #undef SEEK_SET
 #undef SEEK_CUR