diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5d9a0c2..a4d94d8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## 3.1.1 - TBD
+
+[Full Changelog](https://github.com/netzmacht/contao-leaflet-maps/compare/3.1.0...hotfix/3.1.1)
+
+ - Fix missing marker cluster icon
+
 ## 3.1.0 - 2018-01-11
 
 [Full Changelog](https://github.com/netzmacht/contao-leaflet-maps/compare/3.0.4...3.1.0)
diff --git a/src/Bundle/Resources/config/layers.yml b/src/Bundle/Resources/config/layers.yml
index c6dcc77..5e65deb 100644
--- a/src/Bundle/Resources/config/layers.yml
+++ b/src/Bundle/Resources/config/layers.yml
@@ -32,7 +32,7 @@ parameters:
 
     markercluster:
       children: true
-      icon: 'bundles/netzmachtcontaoleaflet/img/markercluster.png'
+      icon: 'bundles/netzmachtcontaoleaflet/img/cluster.png'
 
     tile:
       children: false