diff --git a/components/terrain/cellborder.hpp b/components/terrain/cellborder.hpp
index 0cbe7b899..530ea31ca 100644
--- a/components/terrain/cellborder.hpp
+++ b/components/terrain/cellborder.hpp
@@ -6,7 +6,7 @@
 
 namespace Terrain
 {
-  class World;
+    class World;
 }
 
 namespace MWRender