diff --git a/src/kernel/libroot/os/syscalls.S b/src/kernel/libroot/os/syscalls.S
index 810960bcbe..29901866ad 100644
--- a/src/kernel/libroot/os/syscalls.S
+++ b/src/kernel/libroot/os/syscalls.S
@@ -32,6 +32,7 @@ SYSCALL0(_kern_null, 0)
 SYSCALL4(_kern_mount, 1)
 SYSCALL1(_kern_unmount, 2)
 SYSCALL0(_kern_sync, 3)
+SYSCALL5(_kern_dir_node_ref_to_path, 142)
 SYSCALL2(_kern_open, 4)
 SYSCALL5(_kern_open_entry_ref, 81)
 SYSCALL1(_kern_close, 5)