diff --git a/src/system/libroot/posix/glibc/libio/flockfile.c b/src/system/libroot/posix/glibc/libio/flockfile.c
index 84a5193da3..e6d49b918f 100644
--- a/src/system/libroot/posix/glibc/libio/flockfile.c
+++ b/src/system/libroot/posix/glibc/libio/flockfile.c
@@ -32,3 +32,7 @@ _IO_ftrylockfile(_IO_FILE *stream)
 	//return __libc_lock_trylock_recursive(*stream->_lock);
 	return 1;
 }
+
+weak_alias (_IO_flockfile, flockfile);
+weak_alias (_IO_funlockfile, funlockfile);
+weak_alias (_IO_ftrylockfile, ftrylockfile);