diff --git a/lib/ui/widgets/conversation_file_tile.dart b/lib/ui/widgets/conversation_file_tile.dart
index 42b1c68..3115363 100644
--- a/lib/ui/widgets/conversation_file_tile.dart
+++ b/lib/ui/widgets/conversation_file_tile.dart
@@ -43,6 +43,7 @@ class _ConversationFileWidgetState extends State<ConversationFileWidget> {
                   opacity: 0.8,
                   child: CachedNetworkImage(
                     imageUrl: file.thumbnail!,
+                    cacheKey: "conv-file-${widget.messageID}",
                     width: _AreaWidth,
                     height: _AreaHeight,
                     fit: BoxFit.cover,