-

diff --git a/app/controllers/maps_controller.rb b/app/controllers/maps_controller.rb
index 0ca8b08..6a832d2 100644
--- a/app/controllers/maps_controller.rb
+++ b/app/controllers/maps_controller.rb
@@ -86,7 +86,8 @@ class MapsController < ApplicationController
 
       @tracks = []
       expeditions.each do |exp|
-        if exp.style['simplify'] == true
+
+        if !exp.style.nil? && exp.style['simplify'] == true
           @positions = exp.simplified_positions
           positions = @positions
         else