From 8d0cfeaf82942386fc4728fb4d9eab807e7f07fe Mon Sep 17 00:00:00 2001
From: Tobias Fischer <info@tobiasfischer.info>
Date: Wed, 30 Sep 2020 06:51:10 +1000
Subject: [PATCH] Add missing include

---
 include/ignition/math/Color.hh | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/ignition/math/Color.hh b/include/ignition/math/Color.hh
index faf7a084f..16758c5c7 100644
--- a/include/ignition/math/Color.hh
+++ b/include/ignition/math/Color.hh
@@ -18,6 +18,7 @@
 #define IGNITION_MATH_COLOR_HH_
 
 #include <iostream>
+#include <cctype>
 
 #include <ignition/math/Helpers.hh>
 #include <ignition/math/Vector3.hh>