diff --git a/lib/serve.js b/lib/serve.js
index 46374e36..af336adf 100644
--- a/lib/serve.js
+++ b/lib/serve.js
@@ -59,7 +59,7 @@ function createHandler(dir) {
 
     var isBase64 =
       request.body &&
-      !(request.headers["content-type"] || "").match(/text|application/);
+      !(request.headers["content-type"] || "").match(/text|application|multipart\/form-data/);
     var lambdaRequest = {
       path: request.path,
       httpMethod: request.method,