diff --git a/data/gui/default/window/simple_item_selector.cfg b/data/gui/default/window/simple_item_selector.cfg
index 2495075846a..a4f877afbcc 100644
--- a/data/gui/default/window/simple_item_selector.cfg
+++ b/data/gui/default/window/simple_item_selector.cfg
@@ -14,6 +14,8 @@
 		vertical_placement = "center"
 		horizontal_placement = "center"
 
+		maximum_width = 800
+
 		[linked_group]
 			id = "item"
 			fixed_width = "true"