diff --git a/lib/WPStrava/Settings.php b/lib/WPStrava/Settings.php
index 8e42e7a..4342ccc 100644
--- a/lib/WPStrava/Settings.php
+++ b/lib/WPStrava/Settings.php
@@ -43,7 +43,7 @@ public function maybe_oauth( $value ) {
 					$client_id     = $_POST['strava_client_id'];
 					$client_secret = $_POST['strava_client_secret'];
 
-					$redirect = admin_url( "options-general.php?page={$this->page_name}" );
+					$redirect = urlencode( admin_url( "options-general.php?page={$this->page_name}" ) );
 					$url      = "https://www.strava.com/oauth/authorize?client_id={$client_id}&response_type=code&redirect_uri={$redirect}&approval_prompt=force";
 					wp_redirect( $url );
 					exit();
diff --git a/readme.txt b/readme.txt
index 15a6c8f..cd01a78 100755
--- a/readme.txt
+++ b/readme.txt
@@ -74,6 +74,11 @@ If your API key works with other Google Maps plugins but not WP Strava, you may
 
 == Changelog ==
 
+= 1.5.1 =
+
+urlencode() redirect_uri so authentication works more consistently.
+
+
 = 1.5.0 =
 
 Added additional checks for abridged club data to avoid undefined index/property errors https://wordpress.org/support/topic/club-activities-bugs-strava/
@@ -81,10 +86,12 @@ Added composer with PSR-0 autoloader (will switch to PSR-4 once WP's PHP 5.2 req
 Moved files into appropriate place to support autoloader.
 Added WordPress-Extra coding standards rule definition to project
 
+
 = 1.4.3 =
 
 Fix WPStrava_Activity class not found error.
 
+
 = 1.4.2 =
 
 Better Club ID support.
@@ -92,9 +99,12 @@ Refined cache clearing to include club IDs.
 Removed links to 'app.strava.com'
 Fixed unclosed href anchor on activity shortcode.
 
+
 = 1.4.1 =
+
 Fix array indices on map widget
 
+
 = 1.4.0 =
 
 Added dlintott to contributors.
@@ -107,6 +117,7 @@ Removed target="_blank" from hrefs for accessibility best practices.
 Added links from activity and route shortcodes to respective strava page.
 Removed all instances of extract().
 
+
 = 1.3.0 =
 
 Added [route] shortcode and start/finish https://github.com/cmanon/wp-strava/pull/10/
@@ -168,4 +179,3 @@ Added option to select unit of measurements on the widget. https://wordpress.org
 = 0.6 =
 
 Initial version.
-
diff --git a/wp-strava.php b/wp-strava.php
index f33ff0d..9e53cbd 100755
--- a/wp-strava.php
+++ b/wp-strava.php
@@ -3,7 +3,7 @@
  * Plugin Name: WP Strava
  * Plugin URI: https://wordpress.org/plugins/wp-strava/
  * Description: Show your strava.com activity on your WordPress site. Some Icons are Copyright © Yusuke Kamiyamane. All rights reserved. Licensed under a Creative Commons Attribution 3.0 license.
- * Version: 1.5.0
+ * Version: 1.5.1-rc1
  * Author: Carlos Santa Cruz, Justin Foell, Lance Willett, Daniel Lintott
  * License: GPL2
  * Text Domain: wp-strava