diff --git a/package/x264/x264.mk b/package/x264/x264.mk
index 80437c408c..2c8040b85e 100644
--- a/package/x264/x264.mk
+++ b/package/x264/x264.mk
@@ -36,6 +36,11 @@ ifeq ($(BR2_TOOLCHAIN_HAS_THREADS),)
 X264_CONF_OPTS += --disable-thread
 endif
 
+# Even though the configure script is not generated by autoconf, x264
+# uses config.sub/config.guess, so we want up-to-date versions of
+# them.
+X264_POST_PATCH_HOOKS += UPDATE_CONFIG_HOOK
+
 # the configure script is not generated by autoconf
 define X264_CONFIGURE_CMDS
 	(cd $(@D); $(TARGET_CONFIGURE_OPTS) $(X264_CONF_ENV) ./configure \