diff --git a/src/system/libroot/os/arch/x86/compatibility.c b/src/system/libroot/os/arch/x86/compatibility.c
index 976411ceb9..93cf92137f 100644
--- a/src/system/libroot/os/arch/x86/compatibility.c
+++ b/src/system/libroot/os/arch/x86/compatibility.c
@@ -60,7 +60,7 @@ _kset_fd_limit_(int num)
 int
 _klock_node_(int fd)
 {
-	return B_ERROR;
+	return _kern_lock_node(fd);
 }