From 8e29cda909adb529b9cbd0acba9b56f257520d51 Mon Sep 17 00:00:00 2001
From: Louise Poubel <louise@openrobotics.org>
Date: Fri, 26 Feb 2021 14:06:21 -0800
Subject: [PATCH] codecheck

Signed-off-by: Louise Poubel <louise@openrobotics.org>
---
 src/systems/physics/Physics.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/systems/physics/Physics.cc b/src/systems/physics/Physics.cc
index 84b5276e31..2a4a05cbbd 100644
--- a/src/systems/physics/Physics.cc
+++ b/src/systems/physics/Physics.cc
@@ -27,6 +27,7 @@
 #include <deque>
 #include <string>
 #include <unordered_map>
+#include <unordered_set>
 #include <vector>
 
 #include <ignition/common/MeshManager.hh>