diff --git a/osu.Desktop.VisualTests/Tests/TestCaseChatDisplay.cs b/osu.Desktop.VisualTests/Tests/TestCaseChatDisplay.cs
index 7c2092d614..3305cdcf85 100644
--- a/osu.Desktop.VisualTests/Tests/TestCaseChatDisplay.cs
+++ b/osu.Desktop.VisualTests/Tests/TestCaseChatDisplay.cs
@@ -54,6 +54,7 @@ namespace osu.Desktop.Tests
                     flow = new FlowContainer
                     {
                         Direction = FlowDirection.VerticalOnly,
+                        SizeMode = InheritMode.X,
                         LayoutDuration = 100,
                         LayoutEasing = EasingTypes.Out,
                         Padding = new Vector2(1, 1)