diff --git a/Telegram/SourceFiles/ui/chat/chat_theme.cpp b/Telegram/SourceFiles/ui/chat/chat_theme.cpp
index 4b2e29ed4..b3df51177 100644
--- a/Telegram/SourceFiles/ui/chat/chat_theme.cpp
+++ b/Telegram/SourceFiles/ui/chat/chat_theme.cpp
@@ -124,6 +124,9 @@ constexpr auto kMinAcceptableContrast = 1.14;// 4.5;
 				QImage::Format_ARGB32_Premultiplied),
 			.gradient = gradient,
 			.area = request.area,
+			.waitingForNegativePattern = (request.background.isPattern
+				&& request.background.prepared.isNull()
+				&& request.background.patternOpacity < 0.)
 		};
 	} else {
 		const auto rects = ComputeChatBackgroundRects(
@@ -206,7 +209,8 @@ CachedBackground::CachedBackground(CacheBackgroundResult &&result)
 : pixmap(PixmapFromImage(std::move(result.image)))
 , area(result.area)
 , x(result.x)
-, y(result.y) {
+, y(result.y)
+, waitingForNegativePattern(result.waitingForNegativePattern) {
 }
 
 ChatTheme::ChatTheme() {
diff --git a/Telegram/SourceFiles/ui/chat/chat_theme.h b/Telegram/SourceFiles/ui/chat/chat_theme.h
index a6ee89a4f..ca8c1004e 100644
--- a/Telegram/SourceFiles/ui/chat/chat_theme.h
+++ b/Telegram/SourceFiles/ui/chat/chat_theme.h
@@ -79,6 +79,7 @@ struct CacheBackgroundResult {
 	QSize area;
 	int x = 0;
 	int y = 0;
+	bool waitingForNegativePattern = false;
 };
 
 struct CachedBackground {
@@ -89,6 +90,7 @@ struct CachedBackground {
 	QSize area;
 	int x = 0;
 	int y = 0;
+	bool waitingForNegativePattern = false;
 };
 
 struct BackgroundState {
diff --git a/Telegram/SourceFiles/window/section_widget.cpp b/Telegram/SourceFiles/window/section_widget.cpp
index 862adb762..1da38491f 100644
--- a/Telegram/SourceFiles/window/section_widget.cpp
+++ b/Telegram/SourceFiles/window/section_widget.cpp
@@ -191,7 +191,11 @@ void SectionWidget::PaintBackground(
 		const auto to = QRect(
 			QPoint(cache.x, fromy + cache.y),
 			cache.pixmap.size() / cIntRetinaFactor());
-		if (cache.area == fill) {
+		if (cache.waitingForNegativePattern) {
+			// While we wait for pattern being loaded we paint just gradient.
+			// But in case of negative patter opacity we just fill-black.
+			p.fillRect(to, Qt::black);
+		} else if (cache.area == fill) {
 			p.drawPixmap(to, cache.pixmap);
 		} else {
 			const auto sx = fill.width() / float64(cache.area.width());