diff --git a/src/ColorHelpers.cpp b/src/ColorHelpers.cpp
index d780c31..4f62205 100644
--- a/src/ColorHelpers.cpp
+++ b/src/ColorHelpers.cpp
@@ -1,5 +1,7 @@
 #include "ColorHelpers.hpp"
 
+// Some samples might be NaN or a very big number and kill the whole pixel during the Monte-Carlo averaging
+// We hide this issue here
 Vector3 DeNan(const Vector3 &color)
 {
 	auto temp = color;