diff --git a/tools/build-system/distributions/mandriva/sflphone-client-kde.spec b/tools/build-system/distributions/mandriva/sflphone-client-kde.spec
index 4bd7c29de235dd82aea742a5a3c6d5978c50eddc..a453cf9144f244b82e4e56fd14a168a8ceeaa732 100644
--- a/tools/build-system/distributions/mandriva/sflphone-client-kde.spec
+++ b/tools/build-system/distributions/mandriva/sflphone-client-kde.spec
@@ -30,6 +30,7 @@ Requires:	libqt4-x11
 BuildRequires:  cmake
 BuildRequires:  libcommoncpp-devel
 BuildRequires:  kdepimlibs4-devel
+BuildRequires:  libqt4-devel >= 4.3
 Conflicts:	sflphone
 Prefix:		%{_prefix}
 
diff --git a/tools/build-system/distributions/opensuse/sflphone-client-kde.spec b/tools/build-system/distributions/opensuse/sflphone-client-kde.spec
index 0e5bd038db719190716a7f7c9353b4e1f6d251e8..f558d9b0cd6a71d64ad8021412803e2e7b36667a 100644
--- a/tools/build-system/distributions/opensuse/sflphone-client-kde.spec
+++ b/tools/build-system/distributions/opensuse/sflphone-client-kde.spec
@@ -30,6 +30,7 @@ Requires:	libqt4-x11
 BuildRequires:  cmake
 BuildRequires:  libkdepimlibs4-devel
 BuildRequires:  commoncpp2-devel
+BuildRequires:  libqt4-devel >= 4.3
 BuildRequires:	gettext-tools
 Conflicts:	sflphone
 Prefix:		%{_prefix}