diff --git a/Python/compile.c b/Python/compile.c
index dc636c0..dfb94d3 100644
--- a/Python/compile.c
+++ b/Python/compile.c
@@ -261,6 +261,8 @@
 	if (cmp) return (cmp<0)?-1:1;
 	cmp = co->co_flags - cp->co_flags;
 	if (cmp) return (cmp<0)?-1:1;
+	cmp = co->co_firstlineno - cp->co_firstlineno;
+	if (cmp) return (cmp<0)?-1:1;
 	cmp = PyObject_Compare(co->co_code, cp->co_code);
 	if (cmp) return cmp;
 	cmp = PyObject_Compare(co->co_consts, cp->co_consts);