diff --git a/eclass/apache-2.eclass b/eclass/apache-2.eclass
index 0ff76bd2dcf11..cb41bcdcdcfef 100644
--- a/eclass/apache-2.eclass
+++ b/eclass/apache-2.eclass
@@ -152,6 +152,7 @@ RDEPEND="
 	apache2_modules_lua? ( ${LUA_DEPS} )
 	apache2_modules_md? ( >=dev-libs/jansson-2.10:= )
 	apache2_modules_mime? ( app-misc/mime-types )
+	apache2_modules_proxy_html? ( dev-libs/libxml2:= )
 	apache2_modules_proxy_http2? (
 		>=net-libs/nghttp2-${NGHTTP2_VERSION}:=
 		kernel_linux? ( sys-apps/util-linux )
@@ -159,6 +160,7 @@ RDEPEND="
 	apache2_modules_session_crypto? (
 		dev-libs/apr-util[openssl]
 	)
+	apache2_modules_xml2enc? ( dev-libs/libxml2:= )
 	gdbm? ( sys-libs/gdbm:= )
 	ldap? ( net-nds/openldap:= )
 	selinux? ( sec-policy/selinux-apache )