diff --git a/lib/active_record/connection_adapters/janus_mysql2_adapter.rb b/lib/active_record/connection_adapters/janus_mysql2_adapter.rb
index 4b31d48..b4a5169 100644
--- a/lib/active_record/connection_adapters/janus_mysql2_adapter.rb
+++ b/lib/active_record/connection_adapters/janus_mysql2_adapter.rb
@@ -28,6 +28,11 @@ def initialize(*args)
         @replica_config = args[0][:janus]['replica']
         args[0] = args[0][:janus]['primary']
 
+        if args[0]['database'].nil?
+          args[0]['database'] = nil
+          @replica_config['database'] = nil
+        end
+
         super(*args)
         @connection_parameters ||= args[0]
         update_config
diff --git a/lib/janus/version.rb b/lib/janus/version.rb
index 518dd08..06cf6e6 100644
--- a/lib/janus/version.rb
+++ b/lib/janus/version.rb
@@ -4,7 +4,7 @@ module Janus
   unless defined?(::Janus::VERSION)
     module VERSION
       MAJOR = 0
-      MINOR = 1
+      MINOR = 3
       PATCH = 0
       PRE = nil