diff --git a/src/com/jpexs/decompiler/flash/gui/Main.java b/src/com/jpexs/decompiler/flash/gui/Main.java
index f935180c8..cb3be1f06 100644
--- a/src/com/jpexs/decompiler/flash/gui/Main.java
+++ b/src/com/jpexs/decompiler/flash/gui/Main.java
@@ -305,7 +305,9 @@ public class Main {
                     return swf;
                 }
             };
-            loadingDialog.setWroker(worker);
+            if (loadingDialog != null) {
+                loadingDialog.setWroker(worker);
+            }
             worker.execute();
 
             try {