diff --git a/spine-csharp/src/Collections/OrderedDictionary.cs b/spine-csharp/src/Collections/OrderedDictionary.cs
index f98e25059..e60e7f37b 100644
--- a/spine-csharp/src/Collections/OrderedDictionary.cs
+++ b/spine-csharp/src/Collections/OrderedDictionary.cs
@@ -277,6 +277,7 @@ namespace Spine.Collections
 			set {
 				int index;
 				if (dictionary.TryGetValue(key, out index)) {
+					keys[index] = key;
 					values[index] = value;
 				}
 				else {