diff --git a/kf5-kio.spec b/kf5-kio.spec
index f2360c5..4cf1439 100644
--- a/kf5-kio.spec
+++ b/kf5-kio.spec
@@ -69,10 +69,13 @@ BuildRequires:  libacl-devel
 BuildRequires:  libxml2-devel
 BuildRequires:  libxslt-devel
 %endif
+BuildRequires:  zlib-devel
+
 BuildRequires:  qt5-qtbase-devel
 BuildRequires:  qt5-qtscript-devel
 BuildRequires:  qt5-qtx11extras-devel
-BuildRequires:  zlib-devel
+BuildRequires:  cmake(Qt5UiPlugin)
+
 
 %if ! 0%{?bootstrap}
 # (apparently?) requires org.kde.klauncher5 service provided by kf5-kinit -- rex
@@ -267,6 +270,7 @@ make install/fast DESTDIR=%{buildroot} -C %{_target_platform}
 
 %files widgets-libs
 %{_kf5_libdir}/libKF5KIOWidgets.so.*
+%{_kf5_qtplugindir}/designer/*5widgets.so
 
 %ldconfig_scriptlets file-widgets