diff --git a/python-sip.changes b/python-sip.changes
index 1eefe63..95ed6c9 100644
--- a/python-sip.changes
+++ b/python-sip.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Sun Oct 20 07:42:07 UTC 2013 - lbeltrame@kde.org
+
+- Use alternatives for /usr/bin/sip to prevent conflicts between
+  Python 3 and Python 2 python-sip-devel packages
+
 -------------------------------------------------------------------
 Thu Oct 17 12:41:50 UTC 2013 - toddrme2178@gmail.com
 
diff --git a/python-sip.spec b/python-sip.spec
index a448ee1..3f79a90 100644
--- a/python-sip.spec
+++ b/python-sip.spec
@@ -50,6 +50,7 @@ Group:          Development/Libraries/Python
 Requires:       %{name} = %{version}
 Requires:       c++_compiler
 Requires:       python-devel
+Requires(post):       update-alternatives
 Provides:       python-sip-bin = %{version}
 Obsoletes:      python-sip-bin < %{version}
 
@@ -86,13 +87,28 @@ echo "%%requires_python_sip_api Requires: python-sip(api) = $sip_major.$sip_mino
 
 %install
 make DESTDIR=%{buildroot} install
-
 mkdir -p %{buildroot}%{_datadir}/sip
+
+# For alternatives
+mv %{buildroot}%{_bindir}/sip %{buildroot}%{_bindir}/sip-%{py_ver}
+mkdir -p %{buildroot}%{_sysconfdir}/alternatives
+touch %{buildroot}%{_sysconfdir}/alternatives/sip
+ln -s -f %{_sysconfdir}/alternatives/sip %{buildroot}/%{_bindir}/sip
+
 install -m 644 -D macros.%name %{buildroot}/%{_sysconfdir}/rpm/macros.%name
 
 # Point to the correct location for the documentation files
 sed -i 's/"doc" directory/"doc" directory of package %{name}-devel/' README
 
+%post devel
+update-alternatives --install %{_bindir}/sip sip %{_bindir}/sip-%{py_ver} 50
+
+%preun devel
+
+if ["$1" = 0] ; then
+    update-alternatives --remove sip %{_bindir}/sip-%{py_ver}
+fi
+
 %files
 %defattr(-,root,root,-)
 %doc README
@@ -102,6 +118,8 @@ sed -i 's/"doc" directory/"doc" directory of package %{name}-devel/' README
 %defattr(-,root,root,-)
 %doc NEWS LICENSE* doc/
 %config %{_sysconfdir}/rpm/macros.%name
+%{_bindir}/sip-%{py_ver}
+%ghost %{_sysconfdir}/alternatives/sip
 %{_bindir}/sip
 %{py_incdir}/sip.h
 %{py_sitedir}/sipconfig.py
diff --git a/python3-sip.changes b/python3-sip.changes
index 873a0af..5d479d1 100644
--- a/python3-sip.changes
+++ b/python3-sip.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Sun Oct 20 07:42:54 UTC 2013 - lbeltrame@kde.org
+
+- Use alternatives for /usr/bin/sip to prevent conflicts between
+  Python 3 and Python 2 python-sip-devel packages
+
 -------------------------------------------------------------------
 Thu Oct 17 12:41:50 UTC 2013 - toddrme2178@gmail.com
 
diff --git a/python3-sip.spec b/python3-sip.spec
index ecd41ec..28081bd 100644
--- a/python3-sip.spec
+++ b/python3-sip.spec
@@ -53,6 +53,7 @@ Group:          Development/Libraries/Python
 Requires:       %{name} = %{version}
 Requires:       c++_compiler
 Requires:       python3-devel
+Requires(post):       update-alternatives
 Provides:       python3-sip-bin = %{version}
 Obsoletes:      python3-sip-bin < %{version}
 
@@ -89,14 +90,29 @@ echo "%%requires_python3_sip_api Requires: python3-sip(api) = $sip_major.$sip_mi
 
 %install
 %{make_install}
-
 mkdir -p %{buildroot}%{_datadir}/sip
 
+# For alternatives
+mv %{buildroot}%{_bindir}/sip %{buildroot}%{_bindir}/sip-%{py3_ver}
+mkdir -p %{buildroot}%{_sysconfdir}/alternatives
+touch %{buildroot}%{_sysconfdir}/alternatives/sip
+ln -s -f %{_sysconfdir}/alternatives/sip %{buildroot}/%{_bindir}/sip
+
 # Point to the correct location for the documentation files
 sed -i 's/"doc" directory/"doc" directory of package %{name}-devel/' README
 
 install -m 644 -D macros.%name %{buildroot}/%{_sysconfdir}/rpm/macros.%name
 
+%post devel
+# Lower priority than the python 2.x version for now
+update-alternatives --install %{_bindir}/sip sip %{_bindir}/sip-%{py3_ver} 40
+
+%preun devel
+
+if ["$1" = 0] ; then
+    update-alternatives --remove sip %{_bindir}/sip-%{py3_ver}
+fi
+
 %files
 %defattr(-,root,root,-)
 %doc README
@@ -106,6 +122,8 @@ install -m 644 -D macros.%name %{buildroot}/%{_sysconfdir}/rpm/macros.%name
 %defattr(-,root,root,-)
 %doc NEWS LICENSE* doc/
 %config %{_sysconfdir}/rpm/macros.%name
+%{_bindir}/sip-%{py3_ver}
+%ghost %{_sysconfdir}/alternatives/sip
 %{_bindir}/sip
 %{py3_incdir}/sip.h
 %{python3_sitearch}/sipconfig.py