diff --git a/lib/active_record/connection_adapters/redshift_adapter.rb b/lib/active_record/connection_adapters/redshift_adapter.rb
index 9416c15..eb392c9 100644
--- a/lib/active_record/connection_adapters/redshift_adapter.rb
+++ b/lib/active_record/connection_adapters/redshift_adapter.rb
@@ -128,6 +128,16 @@ def reset!
         end
       end
 
+      def extension_enabled?(name)
+        return false unless supports_extensions?
+        super
+      end
+
+      def extensions
+        return [] unless supports_extensions?
+        super
+      end
+
     private
 
       # Copied from PostgreSQL with minor registration changes.  If broken out, could override segments, etc