From 1e29a170dea795705f9c8d1c3c07749fe790543a Mon Sep 17 00:00:00 2001
From: chriseth <chris@ethereum.org>
Date: Mon, 12 Sep 2022 17:40:46 +0200
Subject: [PATCH] Bugfix.

---
 src/flow/flow.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/flow/flow.rs b/src/flow/flow.rs
index ecf955f..1a77dd2 100644
--- a/src/flow/flow.rs
+++ b/src/flow/flow.rs
@@ -35,7 +35,7 @@ pub fn compute_flow(
                         .entry(prev.clone())
                         .or_default()
                         .entry(node.clone())
-                        .or_default() -= new_flow;
+                        .or_default() += new_flow;
                 }
             } else {
                 panic!();