diff --git a/README.md b/README.md
index ee467b63..c88f7602 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # angel_route
 
-![version 1.0.0-dev+18](https://img.shields.io/badge/version-1.0.0--dev+18-red.svg)
+![version 1.0.0-dev+19](https://img.shields.io/badge/version-1.0.0--dev+19-red.svg)
 ![build status](https://travis-ci.org/angel-dart/route.svg)
 
 A powerful, isomorphic routing library for Dart.
diff --git a/lib/src/route.dart b/lib/src/route.dart
index 303325b5..990368c4 100644
--- a/lib/src/route.dart
+++ b/lib/src/route.dart
@@ -127,7 +127,7 @@ class Route {
   }
 
   void _printDebug(msg) {
-    if (debug == true) print(msg);
+    // if (debug == true) print(msg);
   }
 
   Route._base();
@@ -340,8 +340,8 @@ class Route {
       matcher.firstMatch(path.replaceAll(_straySlashes, ''));
 
   /// Extracts route parameters from a given path.
-  Map parseParameters(String requestPath) {
-    Map result = {};
+  Map<String, String> parseParameters(String requestPath) {
+    Map<String, String> result = {};
 
     Iterable<String> values =
     _parseParameters(requestPath.replaceAll(_straySlashes, ''));
diff --git a/lib/src/router.dart b/lib/src/router.dart
index 5dde5a8d..a02740ff 100644
--- a/lib/src/router.dart
+++ b/lib/src/router.dart
@@ -38,7 +38,7 @@ class Router extends Extensible {
   Router({this.debug: false});
 
   void _printDebug(msg) {
-    if (debug == true) print(msg);
+    // if (debug == true) print(msg);
   }
 
   /// Adds a route that responds to the given path
@@ -66,7 +66,7 @@ class Router extends Extensible {
   /// Returns a [Router] with a duplicated version of this tree.
   Router clone() {
     final router = new Router(debug: debug);
-    final newMounted = new Map.from(mounted);
+    final newMounted = new Map<Pattern, Router>.from(mounted);
 
     for (Route route in routes) {
       if (route is! SymlinkRoute) {
diff --git a/lib/src/routing_result.dart b/lib/src/routing_result.dart
index b70f2ff9..0c533d58 100644
--- a/lib/src/routing_result.dart
+++ b/lib/src/routing_result.dart
@@ -59,7 +59,7 @@ class RoutingResult {
 
   /// All parameters on this sub-path and its children.
   Map<String, dynamic> get allParams {
-    final params = {};
+    final Map<String, dynamic> params = {};
     var search = this;
 
     while (search != null) {
diff --git a/pubspec.yaml b/pubspec.yaml
index 9fe06eff..43fe86ad 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: angel_route
 description: A powerful, isomorphic routing library for Dart.
-version: 1.0.0-dev+18
+version: 1.0.0-dev+19
 author: Tobe O <thosakwe@gmail.com>
 homepage: https://github.com/angel-dart/angel_route
 dev_dependencies: