diff --git a/aircraft_gui.c b/aircraft_gui.c
--- a/aircraft_gui.c
+++ b/aircraft_gui.c
@@ -889,9 +889,9 @@ static void DrawSmallSchedule(Vehicle *v
 static Widget _player_aircraft_widgets[] = {
 {   WWT_CLOSEBOX,    14,     0,    10,     0,    13, STR_00C5,							STR_018B_CLOSE_WINDOW},
 {    WWT_CAPTION,    14,    11,   259,     0,    13, STR_A009_AIRCRAFT,			STR_018C_WINDOW_TITLE_DRAG_THIS},
-{ WWT_PUSHTXTBTN,    14,     0,    80,    14,    25, SRT_SORT_BY,						STR_SORT_TIP},
-{      WWT_PANEL,    14,    81,   237,    14,    25, 0x0,										STR_SORT_TIP},
-{   WWT_CLOSEBOX,    14,   238,   248,    14,    25, STR_0225,							STR_SORT_TIP},
+{ WWT_PUSHTXTBTN,    14,     0,    80,    14,    25, SRT_SORT_BY,						STR_SORT_ORDER_TIP},
+{      WWT_PANEL,    14,    81,   237,    14,    25, 0x0,										STR_SORT_CRITERIA_TIP},
+{   WWT_CLOSEBOX,    14,   238,   248,    14,    25, STR_0225,							STR_SORT_CRITERIA_TIP},
 {      WWT_PANEL,    14,   249,   259,    14,    25, 0x0,										STR_NULL},
 {     WWT_MATRIX,    14,     0,   248,    26,   169, 0x401,									STR_A01F_AIRCRAFT_CLICK_ON_AIRCRAFT},
 {  WWT_SCROLLBAR,    14,   249,   259,    26,   169, 0x0,										STR_0190_SCROLL_BAR_SCROLLS_LIST},
@@ -903,9 +903,9 @@ static Widget _player_aircraft_widgets[]
 static Widget _other_player_aircraft_widgets[] = {
 {   WWT_CLOSEBOX,    14,     0,    10,     0,    13, STR_00C5,							STR_018B_CLOSE_WINDOW},
 {    WWT_CAPTION,    14,    11,   259,     0,    13, STR_A009_AIRCRAFT,			STR_018C_WINDOW_TITLE_DRAG_THIS},
-{ WWT_PUSHTXTBTN,    14,     0,    80,    14,    25, SRT_SORT_BY,						STR_SORT_TIP},
-{      WWT_PANEL,    14,    81,   237,    14,    25, 0x0,										STR_SORT_TIP},
-{   WWT_CLOSEBOX,    14,   238,   248,    14,    25, STR_0225,							STR_SORT_TIP},
+{ WWT_PUSHTXTBTN,    14,     0,    80,    14,    25, SRT_SORT_BY,						STR_SORT_ORDER_TIP},
+{      WWT_PANEL,    14,    81,   237,    14,    25, 0x0,										STR_SORT_CRITERIA_TIP},
+{   WWT_CLOSEBOX,    14,   238,   248,    14,    25, STR_0225,							STR_SORT_CRITERIA_TIP},
 {      WWT_PANEL,    14,   249,   259,    14,    25, 0x0,										STR_NULL},
 {     WWT_MATRIX,    14,     0,   248,    26,   169, 0x401,									STR_A01F_AIRCRAFT_CLICK_ON_AIRCRAFT},
 {  WWT_SCROLLBAR,    14,   249,   259,    26,   169, 0x0,										STR_0190_SCROLL_BAR_SCROLLS_LIST},