diff --git a/src/main/java/de/neemann/digital/gui/components/table/AllSolutionsDialog.java b/src/main/java/de/neemann/digital/gui/components/table/AllSolutionsDialog.java
index a480156c5..649debf79 100644
--- a/src/main/java/de/neemann/digital/gui/components/table/AllSolutionsDialog.java
+++ b/src/main/java/de/neemann/digital/gui/components/table/AllSolutionsDialog.java
@@ -12,7 +12,6 @@ import javax.swing.*;
 import java.awt.*;
 import java.awt.event.WindowAdapter;
 import java.awt.event.WindowEvent;
-import java.awt.event.WindowListener;
 
 /**
  * Simple Dialog to show all possible functions of a truth table.