diff --git a/src/settings_type.h b/src/settings_type.h
--- a/src/settings_type.h
+++ b/src/settings_type.h
@@ -83,7 +83,7 @@ struct GUISettings {
 	uint8  stop_location;                    ///< what is the default stop location of trains?
 	uint8  auto_scrolling;                   ///< scroll when moving mouse to the edge (see #ViewportAutoscrolling)
 	byte   errmsg_duration;                  ///< duration of error message
-	byte   hover_delay;                      ///< time required to activate a hover event, in seconds
+	uint16 hover_delay_ms;                   ///< time required to activate a hover event, in milliseconds
 	bool   link_terraform_toolbar;           ///< display terraform toolbar when displaying rail, road, water and airport toolbars
 	uint8  smallmap_land_colour;             ///< colour used for land and heightmap at the smallmap
 	bool   reverse_scroll;                   ///< right-Click-Scrolling scrolls in the opposite direction