diff --git a/libqca.spec b/libqca.spec
index 908f826..b2b57ff 100644
--- a/libqca.spec
+++ b/libqca.spec
@@ -2,7 +2,7 @@
 
 Name:          libqca
 Version:       2.1.0
-Release:       1mamba
+Release:       2mamba
 Summary:       Qt Cryptographic Architecture (QCA)
 Group:         System/Libraries
 Vendor:        openmamba
@@ -15,7 +15,13 @@ License:       LGPL
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
 BuildRequires: libgcc
+BuildRequires: libgcrypt-devel
+BuildRequires: libgpg-error-devel
+BuildRequires: libnspr-devel
+BuildRequires: libnss-devel
+BuildRequires: libopenssl-devel
 BuildRequires: libqt4-devel
+BuildRequires: libsasl2-devel
 BuildRequires: libstdc++6-devel
 ## AUTOBUILDREQ-END
 BuildRoot:     %{_tmppath}/%{name}-%{version}-root
@@ -39,7 +45,8 @@ This package contains static libraries and header files need for development.
 #%patch0 -p1
 
 %build
-%cmake -d build
+%cmake -d build \
+   -DQT4_BUILD=ON
 
 #./configure \
 #   --release \
@@ -100,6 +107,9 @@ rm -fr %{buildroot}%{_qt4_datadir}/qca/certs
 %doc README TODO
 
 %changelog
+* Wed Feb 18 2015 Silvan Calarco <silvan.calarco@mambasoft.it> 2.1.0-2mamba
+- force qt4 build or it breaks kde4 plasma
+
 * Fri Nov 28 2014 Silvan Calarco <silvan.calarco@mambasoft.it> 2.1.0-1mamba
 - update to 2.1.0