diff --git a/src/main/java/de/uni_hamburg/corpora/gui/GUI.java b/src/main/java/de/uni_hamburg/corpora/gui/GUI.java
index b4455b5684a6a54800d0c017c224677a4dca3797..87832fedb03217a0be85ce88bc8365558e7bd52e 100644
--- a/src/main/java/de/uni_hamburg/corpora/gui/GUI.java
+++ b/src/main/java/de/uni_hamburg/corpora/gui/GUI.java
@@ -160,7 +160,8 @@ public class GUI {
         });
         mainPanel.add(buttonPanel);
         window.getContentPane().add(mainPanel);
-        if (!new File("corpus-services.jar").exists()) {
+        window.setExtendedState(window.getExtendedState() | JFrame.MAXIMIZED_BOTH);
+        if (!new File("lib/corpus-services.jar").exists()) {
             checkButton.setEnabled(false);
             JOptionPane.showMessageDialog(window,
                     "Corpus services file corpus-services.jar is missing. Before you can use this application"