diff --git a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/ui/AttackIndicator.java b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/ui/AttackIndicator.java
index 5eb248a56..b975127e6 100644
--- a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/ui/AttackIndicator.java
+++ b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/ui/AttackIndicator.java
@@ -73,7 +73,7 @@ public class AttackIndicator extends Tag {
 	}
 	
 	@Override
-	public void update() {
+	public synchronized void update() {
 		super.update();
 
 		if (!bg.visible){
@@ -95,7 +95,7 @@ public class AttackIndicator extends Tag {
 		}
 	}
 	
-	private void checkEnemies() {
+	private synchronized void checkEnemies() {
 
 		candidates.clear();
 		int v = Dungeon.hero.visibleEnemies();