diff --git a/docs/landscape_externals.html b/docs/landscape_externals.html
--- a/docs/landscape_externals.html
+++ b/docs/landscape_externals.html
@@ -4,7 +4,7 @@
 <head>
  <meta name="Author" content="Marcin Grzegorczyk">
  <meta name="Description" content="Structure of OpenTTD (OTTD) landscape arrays">
- <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
  <title>OpenTTD Landscape externals</title>
 </head>
 
