diff --git a/src/Avalonia.Base/Collections/AvaloniaDictionary.cs b/src/Avalonia.Base/Collections/AvaloniaDictionary.cs
index b90dccf74e..84ac85d3db 100644
--- a/src/Avalonia.Base/Collections/AvaloniaDictionary.cs
+++ b/src/Avalonia.Base/Collections/AvaloniaDictionary.cs
@@ -117,7 +117,7 @@ namespace Avalonia.Collections
             _inner = new Dictionary<TKey, TValue>();
 
             PropertyChanged?.Invoke(this, new PropertyChangedEventArgs("Count"));
-            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs($"Item[]"));
+            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs("Item[]"));
             
 
             if (CollectionChanged != null)
@@ -222,4 +222,4 @@ namespace Avalonia.Collections
             }
         }
     }
-}
\ No newline at end of file
+}