diff --git a/modules/services/osm.js b/modules/services/osm.js
index ee95b02f4..6a1f80abc 100644
--- a/modules/services/osm.js
+++ b/modules/services/osm.js
@@ -589,7 +589,7 @@ export default {
 
 
     userURL: function(username) {
-        return urlroot + '/user/' + username;
+        return urlroot + '/user/' + encodeURIComponent(username);
     },