diff --git a/net-irc/quassel/quassel-0.14.0-r7.ebuild b/net-irc/quassel/quassel-0.14.0-r7.ebuild
index ca2e5aa17723a..c79aa9006e62d 100644
--- a/net-irc/quassel/quassel-0.14.0-r7.ebuild
+++ b/net-irc/quassel/quassel-0.14.0-r7.ebuild
@@ -112,6 +112,7 @@ src_configure() {
 	# bug #830708
 	if use gui || use monolithic ; then
 		mycmakeargs+=(
+			-DCMAKE_DISABLE_FIND_PACKAGE_KF5Sonnet=ON
 			-DCMAKE_DISABLE_FIND_PACKAGE_LibsnoreQt5=ON
 			-DCMAKE_DISABLE_FIND_PACKAGE_dbusmenu-qt5=ON
 			$(cmake_use_find_package dbus Qt5DBus)
diff --git a/net-irc/quassel/quassel-9999.ebuild b/net-irc/quassel/quassel-9999.ebuild
index 4de30d9a52ad1..75e1c3b74e771 100644
--- a/net-irc/quassel/quassel-9999.ebuild
+++ b/net-irc/quassel/quassel-9999.ebuild
@@ -104,6 +104,7 @@ src_configure() {
 	# bug #830708
 	if use gui || use monolithic ; then
 		mycmakeargs+=(
+			-DCMAKE_DISABLE_FIND_PACKAGE_KF5Sonnet=ON
 			-DCMAKE_DISABLE_FIND_PACKAGE_LibsnoreQt5=ON
 			-DCMAKE_DISABLE_FIND_PACKAGE_dbusmenu-qt5=ON
 			$(cmake_use_find_package dbus Qt5DBus)