diff --git a/src/tui/tui.zig b/src/tui/tui.zig
index e89336c..3bf874a 100644
--- a/src/tui/tui.zig
+++ b/src/tui/tui.zig
@@ -58,7 +58,7 @@ last_hover_y: c_int = -1,
 commands: Commands = undefined,
 logger: log.Logger,
 drag_source: ?*Widget = null,
-drag_button: ?input.MouseType = null,
+drag_button: input.MouseType = 0,
 dark_theme: Widget.Theme,
 dark_parsed_theme: ?std.json.Parsed(Widget.Theme),
 light_theme: Widget.Theme,