diff --git a/src/webserver.js b/src/webserver.js
index 3a9a5e2627..d173da5d06 100644
--- a/src/webserver.js
+++ b/src/webserver.js
@@ -169,7 +169,7 @@ var express = require('express'),
 
 		app.get('/topic/:topic_id/:slug?', function(req, res) {
 			var tid = req.params.topic_id;
-			if (tid.match('\d+\.rss$')) {
+			if (tid.match('^\d+\.rss$')) {
 				fs.readFile('feeds/topics/' + tid, function (err, data) {
 					if (err) {
 						res.type('text').send(404, "Unable to locate an rss feed at this location.");
@@ -197,7 +197,7 @@ var express = require('express'),
 
 		app.get('/category/:category_id/:slug?', function(req, res) {
 			var cid = req.params.category_id;
-			if (cid.match('\d+\.rss$')) {
+			if (cid.match('^\d+\.rss$')) {
 				fs.readFile('feeds/categories/' + cid, function (err, data) {
 					if (err) {
 						res.type('text').send(404, "Unable to locate an rss feed at this location.");