diff --git a/lib/emailreplyparser.js b/lib/emailreplyparser.js
index 445a831..7f1eb54 100644
--- a/lib/emailreplyparser.js
+++ b/lib/emailreplyparser.js
@@ -121,7 +121,8 @@ Email.prototype = {
 
 		var visible_text = [];
 		for (var key in this.fragments) {
-			if (!this.fragments[key].hidden || (include_signatures && this.fragments[key].signature)) {
+			if (this.fragments.hasOwnProperty(key) &&
+			    !this.fragments[key].hidden || (include_signatures && this.fragments[key].signature)) {
 				visible_text.push(this.fragments[key].to_s());
 			}
 		}
@@ -168,7 +169,9 @@ Email.prototype = {
 		var lines = text.split('\n');
 
 		for(var i in lines) {
-			this.scan_line(lines[i]);
+			if (lines.hasOwnProperty(i)) {
+				this.scan_line(lines[i]);
+			}
 		}
 
 		// Finish up the final fragment.  Finishing a fragment will detect any
@@ -316,4 +319,4 @@ Fragment.prototype = {
 
 module.exports.EmailReplyParser = EmailReplyParser;
 
-//console.log(EmailReplyParser.read("I get proper rendering as well.\n\nSent from a magnificent torch of pixels\n\nOn Dec 16, 2011, at 12:47 PM, Corey Donohoe\n<reply@reply.github.com>\nwrote:\n\n> Was this caching related or fixed already?  I get proper rendering here.\n>\n> ![](https://img.skitch.com/20111216-m9munqjsy112yqap5cjee5wr6c.jpg)\n>\n> ---\n> Reply to this email directly or view it on GitHub:\n> https://github.com/github/github/issues/2278#issuecomment-3182418\n"));
\ No newline at end of file
+//console.log(EmailReplyParser.read("I get proper rendering as well.\n\nSent from a magnificent torch of pixels\n\nOn Dec 16, 2011, at 12:47 PM, Corey Donohoe\n<reply@reply.github.com>\nwrote:\n\n> Was this caching related or fixed already?  I get proper rendering here.\n>\n> ![](https://img.skitch.com/20111216-m9munqjsy112yqap5cjee5wr6c.jpg)\n>\n> ---\n> Reply to this email directly or view it on GitHub:\n> https://github.com/github/github/issues/2278#issuecomment-3182418\n"));