From ebca9a489d2d232f804cf04bfa24af46b0ecd3dd Mon Sep 17 00:00:00 2001
From: Patrick Shriwise <pshriwise@gmail.com>
Date: Mon, 24 Aug 2020 09:07:59 -0500
Subject: [PATCH] Update include/openmc/position.h

Co-authored-by: Paul Romano <paul.k.romano@gmail.com>
---
 include/openmc/position.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/openmc/position.h b/include/openmc/position.h
index b27a0f10c..643447ac2 100644
--- a/include/openmc/position.h
+++ b/include/openmc/position.h
@@ -67,7 +67,7 @@ struct Position {
     const double projection = n.dot(*this);
     const double magnitude = n.dot(n);
     n *= (2.0 * projection / magnitude);
-    return *this -= n;
+    return *this - n;
   }
 
   //! Rotate the position based on a rotation matrix