diff --git a/examples/mount_local.c b/examples/mount_local.c
index 3e18fd907..54aa9e44f 100644
--- a/examples/mount_local.c
+++ b/examples/mount_local.c
@@ -14,6 +14,10 @@
 
 #include <guestfs.h>
 
+#ifndef O_CLOEXEC
+#define O_CLOEXEC 0
+#endif
+
 static void
 usage (void)
 {