diff --git a/sys/dev/usb/input/atp.c b/sys/dev/usb/input/atp.c
index 585afbaf1a1..b76653cc303 100644
--- a/sys/dev/usb/input/atp.c
+++ b/sys/dev/usb/input/atp.c
@@ -2017,7 +2017,6 @@ atp_reap_sibling_zombies(void *arg)
 	u_int8_t n_horizontal_scrolls = 0;
 	u_int8_t n_vertical_scrolls = 0;
 	int horizontal_scroll = 0;
-	int vertical_scroll = 0;
 	atp_stroke_t *strokep;
 	atp_stroke_t *strokep_next;
 
@@ -2037,7 +2036,6 @@ atp_reap_sibling_zombies(void *arg)
 				horizontal_scroll += strokep->cum_movement_x;
 			} else if (atp_is_vertical_scroll(strokep)) {
 				n_vertical_scrolls++;
-				vertical_scroll +=  strokep->cum_movement_y;
 			}
 		}