diff --git a/m4/xfts.m4 b/m4/xfts.m4
index 92f63303a..adaf0e0f8 100644
--- a/m4/xfts.m4
+++ b/m4/xfts.m4
@@ -4,7 +4,7 @@ dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 
-AC_DEFUN([gl_XFTS],
+AC_DEFUN([gl_FUNC_XFTS],
 [
   AC_LIBSOURCES([xfts.c, xfts.h])
   AC_LIBOBJ([xfts])