diff --git a/interface/wx/aui/auibook.h b/interface/wx/aui/auibook.h
index 50db1b0d02..0f168ba8b8 100644
--- a/interface/wx/aui/auibook.h
+++ b/interface/wx/aui/auibook.h
@@ -361,7 +361,7 @@ public:
     /**
         Sets the page selection.  Calling this method will generate a page change event.
     */
-    size_t SetSelection(size_t new_page);
+    int SetSelection(size_t new_page);
 
     /**
         Sets the tab height. By default, the tab control height is calculated