diff --git a/m4/jm-macros.m4 b/m4/jm-macros.m4
index a29de68a5..602c440b6 100644
--- a/m4/jm-macros.m4
+++ b/m4/jm-macros.m4
@@ -47,7 +47,6 @@ AC_DEFUN([jm_MACROS],
   AC_REQUIRE([AC_FUNC_MALLOC])
   AC_REQUIRE([AC_FUNC_STRERROR_R])
   AC_REQUIRE([jm_FUNC_NANOSLEEP])
-  AC_REQUIRE([jm_FUNC_READDIR])
   AC_REQUIRE([jm_FUNC_MEMCMP])
   AC_REQUIRE([jm_FUNC_GLIBC_UNLOCKED_IO])
   AC_REQUIRE([AC_FUNC_FNMATCH_GNU])