diff --git a/Telegram/SourceFiles/calls/group/calls_group_viewport_opengl.cpp b/Telegram/SourceFiles/calls/group/calls_group_viewport_opengl.cpp
index 33536a37e3..06a01ce1b1 100644
--- a/Telegram/SourceFiles/calls/group/calls_group_viewport_opengl.cpp
+++ b/Telegram/SourceFiles/calls/group/calls_group_viewport_opengl.cpp
@@ -331,7 +331,10 @@ void Viewport::RendererGL::init(
 	_imageProgram.emplace();
 	LinkProgram(
 		&*_imageProgram,
-		_frameVertexShader,
+		VertexShader({
+			VertexViewportTransform(),
+			VertexPassTextureCoord(),
+		}),
 		FragmentShader({
 			FragmentSampleARGB32Texture(),
 		}));