diff --git a/src/tree_cmd.cpp b/src/tree_cmd.cpp
--- a/src/tree_cmd.cpp
+++ b/src/tree_cmd.cpp
@@ -17,7 +17,6 @@
 #include "command_func.h"
 #include "economy_func.h"
 #include "town.h"
-#include "variables.h"
 #include "genworld.h"
 #include "transparency.h"
 #include "functions.h"