diff --git a/ca-certificates.spec b/ca-certificates.spec
index 721ef48..2321290 100644
--- a/ca-certificates.spec
+++ b/ca-certificates.spec
@@ -1,6 +1,6 @@
 Name:          ca-certificates
 Version:       20141019
-Release:       2mamba
+Release:       3mamba
 Summary:       The Mozilla CA root certificate bundle
 Group:         System/Tools
 Vendor:        openmamba
@@ -20,6 +20,7 @@ BuildRequires: rcs
 #%if "%{stage1}" != "1"
 #BuildRequires: java-openjdk
 #%endif
+Requires(post): openssl
 BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
@@ -83,6 +84,9 @@ fi
 %{_mandir}/man8/update-ca-certificates.8*
 
 %changelog
+* Sat Mar 14 2015 Silvan Calarco <silvan.calarco@mambasoft.it> 20141019-3mamba
+- require openssl because update-ca-certificates needs c_rehash
+
 * 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