diff --git a/src/editor/edmap.cpp b/src/editor/edmap.cpp
index 18b53bb09..7cfe593ec 100644
--- a/src/editor/edmap.cpp
+++ b/src/editor/edmap.cpp
@@ -633,6 +633,7 @@ global void EditorCreateRandomMap()
   EditorRandomizeTile( COAST_TILE, 10, 16 );
   EditorRandomizeTile( GRASS_TILE, 20, 16 );
   EditorRandomizeTile( WOOD_TILE,  60,  4 );
+  EditorRandomizeTile( ROCK_TILE,  30,  2 );
 }
 
 //@}