diff --git a/balloon/balloon.h b/balloon/balloon.h
index cef87f2..3ce757c 100644
--- a/balloon/balloon.h
+++ b/balloon/balloon.h
@@ -8,8 +8,8 @@
 #include <stack>
 
 #include "balloon_type.h"
-#include "balloon_var.h"
 #include "abstract_syntax_tree.h"
+#include "balloon_var.h"
 #include "balloon_lexer.h"
 #include "balloon_parse.h"
 
diff --git a/balloon/balloon_var.h b/balloon/balloon_var.h
index decac0c..7aa2953 100644
--- a/balloon/balloon_var.h
+++ b/balloon/balloon_var.h
@@ -19,6 +19,7 @@ class var
 		std::string name;
 		std::list<var> balloon_array;
 		std::list<var> balloon_hash;
+		abstract_syntax_tree function;
 	public:
 		var()
 		{