diff --git a/Telegram/SourceFiles/data/data_document_media.cpp b/Telegram/SourceFiles/data/data_document_media.cpp
index 67a0192f4..00057bbb3 100644
--- a/Telegram/SourceFiles/data/data_document_media.cpp
+++ b/Telegram/SourceFiles/data/data_document_media.cpp
@@ -58,7 +58,8 @@ enum class FileType {
 	} else if (type == FileType::AnimatedSticker) {
 		return Lottie::ReadThumbnail(Lottie::ReadContent(data, path));
 	} else if (type == FileType::Theme) {
-		return Window::Theme::GeneratePreview(data, path);
+		auto langStrings = Window::Theme::CollectStrings();
+		return Window::Theme::GeneratePreview(data, path, langStrings);
 	}
 	auto buffer = QBuffer(&data);
 	auto file = QFile(path);