--- bakefile-0.2.9/src/bkl_c_wrap.c.orig 2012-10-28 11:30:36.753339208 +0200 +++ bakefile-0.2.9/src/bkl_c_wrap.c 2012-10-28 11:30:41.618291661 +0200 @@ -850,7 +850,7 @@ Py_DECREF(old_str); Py_DECREF(value); } else { - PyErr_Format(PyExc_RuntimeError, mesg); + PyErr_Format(PyExc_RuntimeError, "%s", mesg); } }