diff --git a/advent/days/day23/solution.py b/advent/days/day23/solution.py
index cc39f29..a2c9eb2 100644
--- a/advent/days/day23/solution.py
+++ b/advent/days/day23/solution.py
@@ -143,7 +143,7 @@ class Ground:
             proposals: dict[Position, Position] = {}
             touched: set[Position] = set()
             for from_pos, last_touched in elves.items():
-                if last_touched + 4 < round:
+                if last_touched + 4 <= round:
                     continue
 
                 found = False