diff --git a/lib/split/helper.rb b/lib/split/helper.rb
index 8d45e2f4..b0e700c1 100644
--- a/lib/split/helper.rb
+++ b/lib/split/helper.rb
@@ -16,7 +16,7 @@ def ab_test(metric_descriptor, control = nil, *alternatives)
         else
           control_variable(experiment.control)
         end
-      rescue Errno::ECONNREFUSED, Redis::CannotConnectError, SocketError => e
+      rescue Errno::ECONNREFUSED, Redis::BaseError, SocketError => e
         raise(e) unless Split.configuration.db_failover
         Split.configuration.db_failover_on_db_error.call(e)