diff --git a/libreoffice.spec b/libreoffice.spec
index fbc7c613a3..e398349ca4 100644
--- a/libreoffice.spec
+++ b/libreoffice.spec
@@ -12,7 +12,7 @@
 %else
 %def_with java
 %def_enable kde4
-%def_disable qt5
+%def_enable qt5
 %endif
 %def_disable mergelibs
 
@@ -86,7 +86,7 @@ BuildRequires: libX11-devel libXext-devel libXinerama-devel libXrandr-devel libX
 BuildRequires: libssl-devel
 
 %if_enabled kde4
-BuildRequires: kde4libs-devel
+BuildRequires: kde4libs-devel kf5-kconfig-devel kf5-kcoreaddons-devel kf5-ki18n-devel kf5-kio-devel kf5-kwindowsystem-devel
 %endif
 
 # 4.4
@@ -110,7 +110,7 @@ BuildRequires: libxmlsec1-nss-devel libgpgme-devel
 BuildRequires: libepubgen-devel libqxp-devel boost-locale-devel boost-filesystem-devel
 # 6.0.5
 %if_enabled qt5
-BuildRequires: qt5-base-devel
+BuildRequires: qt5-base-devel qt5-x11extras-devel
 %endif
 
 # 6.1.0
@@ -366,10 +366,11 @@ export CXXFLAGS="$CFLAGS"
 	--enable-release-build \
 	--with-help \
   \
-	%{subst_enable kde4} \
-	%{subst_enable qt5} \
-	--enable-gtk \
 	--enable-gtk3 \
+	--enable-gtk3-kde5 \
+	--disable-qt5 \
+	--disable-kde4 \
+	--disable-kde5 \
 	--disable-gstreamer-0-10 \
   \
   	--enable-avahi \