add code to debug collision rectangles

[supertux.git] / src / serializable.hpp

diff --git a/src/serializable.hpp b/src/serializable.hpp
index 06a8234..6534db1 100644 (file)
--- a/src/serializable.hpp
+++ b/src/serializable.hpp
@@ -19,9 +19,7 @@
 #ifndef SUPERTUX_SERIALIZABLE_H
 #define SUPERTUX_SERIALIZABLE_H
 
-namespace lisp {
-class Writer;
-}
+#include "lisp/writer.hpp"
 
 class Serializable
 {