From eb8ef6532c863b3d8d68b96b13e3498313641d82 Mon Sep 17 00:00:00 2001
From: Rob Figueiredo <robfig@gmail.com>
Date: Mon, 27 May 2013 18:16:50 -0400
Subject: [PATCH] Router: only create a new map for Fixed params if necessary

---
 router.go | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/router.go b/router.go
index 53b6f712c..e0eec0e8e 100644
--- a/router.go
+++ b/router.go
@@ -434,8 +434,10 @@ var RouterFilter = func(c *Controller, fc []Filter) {
 	}
 
 	// Add the fixed parameters mapped by name.
-	c.Params.Fixed = make(url.Values)
 	for i, value := range route.FixedParams {
+		if c.Params.Fixed == nil {
+			c.Params.Fixed = make(url.Values)
+		}
 		if i < len(c.MethodType.Args) {
 			arg := c.MethodType.Args[i]
 			c.Params.Fixed.Set(arg.Name, value)