diff --git a/src/st/st-entry.c b/src/st/st-entry.c
index ed5f303d2..c00caa47a 100644
--- a/src/st/st-entry.c
+++ b/src/st/st-entry.c
@@ -469,7 +469,7 @@ st_entry_allocate (ClutterActor          *actor,
       clutter_actor_allocate (right_icon, &icon_box, flags);
 
       /* reduce the size for the entry */
-      child_box.x2 -= icon_w - priv->spacing;
+      child_box.x2 -= icon_w + priv->spacing;
     }
 
   clutter_actor_get_preferred_height (priv->entry, child_box.x2 - child_box.x1,