diff --git a/src/lang/unfinished/ido.txt b/src/lang/unfinished/ido.txt
--- a/src/lang/unfinished/ido.txt
+++ b/src/lang/unfinished/ido.txt
@@ -240,7 +240,6 @@ STR_MEASURE_AREA_HEIGHTDIFF             
 
 
 # These are used in buttons
-STR_SORT_BY_POPULATION                                          :Populo
 STR_SORT_BY_CAPTION_NAME                                        :{BLACK}Nomo
 STR_SORT_BY_CAPTION_DATE                                        :{BLACK}Dato
 # These are used in dropdowns
@@ -253,6 +252,7 @@ STR_SORT_BY_MAX_SPEED                   
 STR_SORT_BY_LENGTH                                              :Longeso
 STR_SORT_BY_FACILITY                                            :Stacion-tipo
 STR_SORT_BY_POWER                                               :Povo
+STR_SORT_BY_POPULATION                                          :Populo
 
 # Tooltips for the main toolbar
 STR_TOOLBAR_TOOLTIP_PAUSE_GAME                                  :{BLACK}Pauzas ludo