diff --git a/lib/berkshelf/ssl_policies.rb b/lib/berkshelf/ssl_policies.rb
index 3a691a14d..ea7888094 100644
--- a/lib/berkshelf/ssl_policies.rb
+++ b/lib/berkshelf/ssl_policies.rb
@@ -16,7 +16,7 @@ def initialize
     def add_trusted_cert(cert)
       @store.add_cert(cert)
     rescue OpenSSL::X509::StoreError => e
-      raise e unless e.message == "cert already in hash table"
+      raise e unless e.message.match(/cert already in hash table/)
     end
 
     def trusted_certs_dir