diff --git a/lib/server/flop.js b/lib/server/flop.js
index 27a61ba9..bb7be64d 100644
--- a/lib/server/flop.js
+++ b/lib/server/flop.js
@@ -107,6 +107,8 @@
         
         if (!type)
             type        = '';
+        else if (type instanceof Buffer)
+            type = 'string';
         
         switch(type) {
         case 'string':