diff --git a/ICD.Common.Utils/Extensions/DictionaryExtensions.cs b/ICD.Common.Utils/Extensions/DictionaryExtensions.cs
index 1869f54..18a3d0d 100644
--- a/ICD.Common.Utils/Extensions/DictionaryExtensions.cs
+++ b/ICD.Common.Utils/Extensions/DictionaryExtensions.cs
@@ -239,6 +239,26 @@ namespace ICD.Common.Utils.Extensions
 			return change;
 		}
 
+		/// <summary>
+		/// Adds the sequence of items to the dictionary.
+		/// </summary>
+		/// <typeparam name="TKey"></typeparam>
+		/// <typeparam name="TValue"></typeparam>
+		/// <param name="extends"></param>
+		/// <param name="items"></param>
+		[PublicAPI]
+		public static void AddRange<TKey, TValue>(this IDictionary<TKey, TValue> extends, IEnumerable<KeyValuePair<TKey, TValue>> items)
+		{
+			if (extends == null)
+				throw new ArgumentNullException("extends");
+
+			if (items == null)
+				throw new ArgumentNullException("items");
+
+			foreach (KeyValuePair<TKey, TValue> item in items)
+				extends.Add(item);
+		}
+
 		/// <summary>
 		/// Adds the sequence of items to the dictionary.
 		/// </summary>