diff --git a/teavm-core/src/main/java/org/teavm/javascript/ast/MonitorExitStatement.java b/teavm-core/src/main/java/org/teavm/javascript/ast/MonitorExitStatement.java
index f7d597103..643485096 100644
--- a/teavm-core/src/main/java/org/teavm/javascript/ast/MonitorExitStatement.java
+++ b/teavm-core/src/main/java/org/teavm/javascript/ast/MonitorExitStatement.java
@@ -22,7 +22,6 @@ package org.teavm.javascript.ast;
 public class MonitorExitStatement extends Statement {
     private NodeLocation location;
     private Expr objectRef;
-    private Integer asyncTarget;
 
     @Override
     public void acceptVisitor(StatementVisitor visitor) {