diff --git a/gui/src/aaregui/main_window.py b/gui/src/aaregui/main_window.py
index ba8ba34f..833cb892 100644
--- a/gui/src/aaregui/main_window.py
+++ b/gui/src/aaregui/main_window.py
@@ -236,7 +236,7 @@ class MainWindow(QMainWindow):
         QMessageBox.about(
             self,
             "About",
-            "Aare Macromolecular Crystallography GUI\nVersion: 1.0\nCopyright: Paul Scherrer Insitute 2024-2025",
+            "Aare Macromolecular Crystallography GUI\nVersion: 1.0\nCopyright: Paul Scherrer Instiute 2024-2025",
         )
 
     @Slot(str)