diff --git a/ca-certificates.spec b/ca-certificates.spec
index 7108a74..721ef48 100644
--- a/ca-certificates.spec
+++ b/ca-certificates.spec
@@ -1,6 +1,6 @@
 Name:          ca-certificates
 Version:       20141019
-Release:       1mamba
+Release:       2mamba
 Summary:       The Mozilla CA root certificate bundle
 Group:         System/Tools
 Vendor:        openmamba
@@ -51,7 +51,7 @@ install -d -m0755 %{buildroot}%{_sysconfdir}/pki/tls/certs
 ln -s ../../../ssl/certs/ca-certificates.crt %{buildroot}%{_sysconfdir}/pki/tls/certs/ca-bundle.crt
 ln -s certs/ca-bundle.crt %{buildroot}%{_sysconfdir}/pki/tls/cert.pem
 
-%post
+%posttrans
 if [ $1 -ge 1 ]; then
 %{_sbindir}/update-ca-certificates --fresh >/dev/null 2>&1
 fi
@@ -83,6 +83,9 @@ fi
 %{_mandir}/man8/update-ca-certificates.8*
 
 %changelog
+* Mon Mar 09 2015 Silvan Calarco <silvan.calarco@mambasoft.it> 20141019-2mamba
+- run update-ca-certificates in %posttrans script to maybe fix failure in makedist builds
+
 * Sat Nov 22 2014 Automatic Build System <autodist@mambasoft.it> 20141019-1mamba
 - automatic update by autodist