diff --git a/invesalius/gui/default_viewers.py b/invesalius/gui/default_viewers.py
index c6957572f..41413e901 100644
--- a/invesalius/gui/default_viewers.py
+++ b/invesalius/gui/default_viewers.py
@@ -177,6 +177,9 @@ def RestoreViewerVolume(self):
         self.aui_manager.Update()
 
     def MaximizeViewerVolume(self):
+        # Restore volume viewer to make sure it is not already maximized before attempting to maximize it
+        # to fix the issue with panes locking into the maximized state where they cannot be restored
+        self.RestoreViewerVolume()
         self.aui_manager.MaximizePane(
             self.aui_manager.GetAllPanes()[-1]
         )  # Viewer volume is the last pane