diff --git a/src/stardict-view.c b/src/stardict-view.c
index a6f7733..2ac02e0 100644
--- a/src/stardict-view.c
+++ b/src/stardict-view.c
@@ -489,8 +489,9 @@ stardict_view_scroll_event (GtkWidget *widget, GdkEventScroll *event)
 	{
 		// On GDK/Wayland, the mouse wheel will typically create 1.5 deltas,
 		// after dividing a 15 degree click angle from libinput by 10.
+		// (Noticed on Arch + Sway, cannot reproduce on Ubuntu 22.04.)
 		// On X11, as libinput(4) indicates, the delta will always be 1.0.
-		double delta = CLAMP(event->delta_y, -1, +1);
+		double delta = CLAMP (event->delta_y, -1, +1);
 		stardict_view_scroll (self, GTK_SCROLL_STEPS, 3 * delta);
 		return TRUE;
 	}