diff -up cel-src-1.2/plugins/behaviourlayer/python/blpython.cpp~ cel-src-1.2/plugins/behaviourlayer/python/blpython.cpp
--- cel-src-1.2/plugins/behaviourlayer/python/blpython.cpp~	2007-10-03 13:38:26.000000000 +0200
+++ cel-src-1.2/plugins/behaviourlayer/python/blpython.cpp	2009-02-23 14:49:03.000000000 +0100
@@ -161,7 +161,7 @@ iCelBehaviour* celBlPython::CreateBehavi
   PyObject *py_entity, *py_object;
 
   csString realname;
-  char* slash = strrchr (name, '/');
+  const char* slash = strrchr (name, '/');
   if (slash)
   {
     csString path;