diff --git a/jso/apis/src/main/java/org/teavm/jso/workers/SharedWorker.java b/jso/apis/src/main/java/org/teavm/jso/workers/SharedWorker.java
index e2342a7ce..564d952b5 100644
--- a/jso/apis/src/main/java/org/teavm/jso/workers/SharedWorker.java
+++ b/jso/apis/src/main/java/org/teavm/jso/workers/SharedWorker.java
@@ -18,10 +18,8 @@ package org.teavm.jso.workers;
 import org.teavm.jso.JSBody;
 import org.teavm.jso.JSClass;
 import org.teavm.jso.JSProperty;
-import org.teavm.jso.dom.events.ErrorEvent;
 import org.teavm.jso.dom.events.Event;
 import org.teavm.jso.dom.events.EventListener;
-import org.teavm.jso.dom.events.Registration;
 
 @JSClass
 public class SharedWorker implements AbstractWorker {
diff --git a/jso/apis/src/main/java/org/teavm/jso/workers/Worker.java b/jso/apis/src/main/java/org/teavm/jso/workers/Worker.java
index 7738d4139..2e8425c1d 100644
--- a/jso/apis/src/main/java/org/teavm/jso/workers/Worker.java
+++ b/jso/apis/src/main/java/org/teavm/jso/workers/Worker.java
@@ -17,8 +17,6 @@ package org.teavm.jso.workers;
 
 import org.teavm.jso.JSBody;
 import org.teavm.jso.JSClass;
-import org.teavm.jso.JSProperty;
-import org.teavm.jso.dom.events.ErrorEvent;
 import org.teavm.jso.dom.events.Event;
 import org.teavm.jso.dom.events.EventListener;
 import org.teavm.jso.dom.events.MessageEvent;