diff --git a/eclipse-mpc.spec b/eclipse-mpc.spec
index b4d15ec..cf8db1e 100644
--- a/eclipse-mpc.spec
+++ b/eclipse-mpc.spec
@@ -3,7 +3,7 @@
 
 Name:           eclipse-mpc
 Version:        1.3.0
-Release:        1%{?dist}
+Release:        2%{?dist}
 Summary:        Eclipse Marketplace Client
 
 Group:          Development/Tools
@@ -33,6 +33,7 @@ The Eclipse Marketplace Client provides access to extension catalogs.
 %pom_remove_plugin org.codehaus.mojo:findbugs-maven-plugin org.eclipse.epp.mpc.ui/pom.xml
 %pom_remove_plugin org.eclipse.tycho:target-platform-configuration org.eclipse.epp.mpc-parent/pom.xml
 %pom_xpath_remove "pom:build/pom:pluginManagement/pom:plugins/pom:plugin[pom:artifactId='tycho-packaging-plugin']" org.eclipse.epp.mpc-parent/pom.xml
+sed -i '/Bundle-SymbolicName/ s/$/;singleton:=true/' org.eclipse.epp.mpc.core/META-INF/MANIFEST.MF
 
 %build
 %mvn_build -i -j -f -- -Pdist
@@ -47,6 +48,10 @@ xmvn -o org.fedoraproject:feclipse-maven-plugin:install \
 %{install_loc}
 
 %changelog
+* Mon Oct 06 2014 Roland Grunberg <rgrunber@redhat.com> - 1.3.0-2
+- Make org.eclipse.epp.mpc.core a singleton bundle.
+- Resolves: rhbz#1149469
+
 * Thu Sep 11 2014 Alexander Kurtakov <akurtako@redhat.com> 1.3.0-1
 - Update to upstream 1.3.0 release.