diff --git a/sys/kernel/syscalls_posix.c b/sys/kernel/syscalls_posix.c
index 7fc9253..b4d2700 100644
--- a/sys/kernel/syscalls_posix.c
+++ b/sys/kernel/syscalls_posix.c
@@ -2745,7 +2745,7 @@
     0,
     "pipe2",
         sys_pipe2,
-        SYSCALL_VALID }, /* 542 - Invalid */
+        SYSCALL_VALID }, /* 542 */
   {
     0,
     "aio_mlock",