diff --git a/robocode.host/src/main/java/net/sf/robocode/host/security/RobotThreadManager.java b/robocode.host/src/main/java/net/sf/robocode/host/security/RobotThreadManager.java
index c7a4062b9..bfe50d076 100644
--- a/robocode.host/src/main/java/net/sf/robocode/host/security/RobotThreadManager.java
+++ b/robocode.host/src/main/java/net/sf/robocode/host/security/RobotThreadManager.java
@@ -179,7 +179,7 @@ private int stopSteps(Thread t) {
 	private void stop(Thread t) {
 		if (t != null) {
 			// noinspection deprecation
-			t.stop();
+			t.interrupt();
 			try {
 				t.join(1500);
 			} catch (InterruptedException e) {