diff --git a/src/SlapperRotation/Main.php b/src/SlapperRotation/Main.php
index aeea9f9..1f0c120 100644
--- a/src/SlapperRotation/Main.php
+++ b/src/SlapperRotation/Main.php
@@ -29,6 +29,9 @@ public function onPlayerMove(PlayerMoveEvent $ev) {
 			if($e instanceof Player) {
 				continue;
 			}
+                        if(!($e instanceof SlapperEntity)){
+                                continue;
+                        }
 			if(substr($e->getSaveId(), 0, 7) !== "Slapper") {
 				continue;
 			}