diff --git a/utils/mp-server/query-scripts/12-factions-by-side-count.sql b/utils/mp-server/query-scripts/12-factions-by-side-count.sql
index f7820d2b4f0..cb41049a0c7 100644
--- a/utils/mp-server/query-scripts/12-factions-by-side-count.sql
+++ b/utils/mp-server/query-scripts/12-factions-by-side-count.sql
@@ -1,13 +1,17 @@
-select player.FACTION, count(*) as SIDE_COUNT
+select content.ID, player.FACTION, count(*) as SIDE_COUNT
 from wesnothd_game_info game
 inner join wesnothd_game_player_info player
    on game.INSTANCE_UUID = player.INSTANCE_UUID
   and game.GAME_ID = player.GAME_ID
   and player.USER_ID != -1
   and player.FACTION != ''
+inner join wesnothd_game_content_info content
+   on game.INSTANCE_UUID = content.INSTANCE_UUID
+  and game.GAME_ID = content.GAME_ID
+  and content.TYPE = 'era'
 where YEAR(game.START_TIME) = YEAR(CURRENT_DATE - INTERVAL 1 MONTH)
   and MONTH(game.START_TIME) = MONTH(CURRENT_DATE - INTERVAL 1 MONTH)
   and game.END_TIME is not NULL
   and TIMESTAMPDIFF(MINUTE, game.START_TIME, game.END_TIME) > 5
-group by player.FACTION
+group by content.ID, player.FACTION
 order by count(*) desc