diff --git a/CHANGELOG.md b/CHANGELOG.md
index ee842c9..da1e65f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,8 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+### Changed
+ - IcdHashSet preserves comparer when an operation creates a new IcdHashSet
 
 ## [8.1.0] - 2019-01-02
 ### Added
diff --git a/ICD.Common.Utils/Collections/IcdHashSet.cs b/ICD.Common.Utils/Collections/IcdHashSet.cs
index 9c68435..8a9bab3 100644
--- a/ICD.Common.Utils/Collections/IcdHashSet.cs
+++ b/ICD.Common.Utils/Collections/IcdHashSet.cs
@@ -95,7 +95,7 @@ namespace ICD.Common.Utils.Collections
 			if (set == null)
 				throw new ArgumentNullException("set");
 
-			IcdHashSet<T> unionSet = new IcdHashSet<T>(this);
+			IcdHashSet<T> unionSet = new IcdHashSet<T>(m_Dict.Comparer, this);
 			unionSet.AddRange(set);
 
 			return unionSet;
@@ -112,7 +112,7 @@ namespace ICD.Common.Utils.Collections
 			if (set == null)
 				throw new ArgumentNullException("set");
 
-			IcdHashSet<T> subtractSet = new IcdHashSet<T>(this);
+			IcdHashSet<T> subtractSet = new IcdHashSet<T>(m_Dict.Comparer, this);
 
 			foreach (T item in set)
 				subtractSet.Remove(item);
@@ -131,7 +131,7 @@ namespace ICD.Common.Utils.Collections
 			if (set == null)
 				throw new ArgumentNullException("set");
 
-			IcdHashSet<T> intersectionSet = new IcdHashSet<T>();
+			IcdHashSet<T> intersectionSet = new IcdHashSet<T>(m_Dict.Comparer);
 
 			foreach (T item in set.Where(Contains))
 				intersectionSet.Add(item);
@@ -150,7 +150,7 @@ namespace ICD.Common.Utils.Collections
 			if (set == null)
 				throw new ArgumentNullException("set");
 
-			IcdHashSet<T> output = new IcdHashSet<T>(this);
+			IcdHashSet<T> output = new IcdHashSet<T>(m_Dict.Comparer, this);
 
 			foreach (T item in set)
 			{