diff --git a/src/linux/umount2.c b/src/linux/umount2.c
index cab93fd042bb3baea4f2291dde485406c395ea34..ff0803c1f3705bac7a8ffbba42b1b48310e1b73b 100644
--- a/src/linux/umount2.c
+++ b/src/linux/umount2.c
@@ -1,5 +1,4 @@
 #include <sys/mount.h>
-#define SYSCALL_STANDALONE
 #include "syscall.h"
 
 int umount2(const char *special, int flags)