diff --git a/lib/formstream.js b/lib/formstream.js
index bdb97e5..fb47b4a 100644
--- a/lib/formstream.js
+++ b/lib/formstream.js
@@ -214,8 +214,13 @@ FormStream.prototype.buffer = function (name, buffer, filename, mimeType) {
 
   process.nextTick(this.resume.bind(this));
   if (debug.enabled) {
-    debug('new buffer field, content size: %d\n%s%s',
-      buffer.length, leading.toString(), hex(buffer));
+    if (buffer.length > 512) {
+      debug('new buffer field, content size: %d\n%s%s',
+        buffer.length, leading.toString(), hex(buffer.slice(0, 512)));
+    } else {
+      debug('new buffer field, content size: %d\n%s%s',
+        buffer.length, leading.toString(), hex(buffer));
+    }
   }
   return this;
 };