diff --git a/package/x11r7/xproto_inputproto/xproto_inputproto.mk b/package/x11r7/xproto_inputproto/xproto_inputproto.mk
index 5b3c63a588..9e45e2d30a 100644
--- a/package/x11r7/xproto_inputproto/xproto_inputproto.mk
+++ b/package/x11r7/xproto_inputproto/xproto_inputproto.mk
@@ -12,6 +12,7 @@ XPROTO_INPUTPROTO_LICENSE_FILES = COPYING
 XPROTO_INPUTPROTO_INSTALL_STAGING = YES
 XPROTO_INPUTPROTO_INSTALL_TARGET = NO
 XPROTO_INPUTPROTO_CONF_ENV = ac_cv_path_ASCIIDOC=""
+HOST_XPROTO_INPUTPROTO_CONF_ENV = ac_cv_path_ASCIIDOC=""
 
 $(eval $(autotools-package))
 $(eval $(host-autotools-package))