diff --git a/src/ngRoute/route.js b/src/ngRoute/route.js
index 2d7ce8e40a3e..6f441ec9ba04 100644
--- a/src/ngRoute/route.js
+++ b/src/ngRoute/route.js
@@ -185,7 +185,7 @@ function $RouteProvider(){
 
     path = path
       .replace(/([().])/g, '\\$1')
-      .replace(/(\/)?:(\w+)([\?\*])?/g, function(_, slash, key, option){
+      .replace(/(\/)?:(\w+)(?::([^\/]+))?([?*])?/g, function (_, slash, key, rxconstraint, option) {
         var optional = option === '?' ? option : null;
         var star = option === '*' ? option : null;
         keys.push({ name: key, optional: !!optional });
@@ -194,7 +194,7 @@ function $RouteProvider(){
           + (optional ? '' : slash)
           + '(?:'
           + (optional ? slash : '')
-          + (star && '(.+?)' || '([^/]+)')
+          + (star && '(.+?)' || rxconstraint && ('(' + rxconstraint + ')') || '([^/]+)')
           + (optional || '')
           + ')'
           + (optional || '');