diff --git a/install/database_schema.sql b/install/database_schema.sql
index 2be3642..1cda409 100644
--- a/install/database_schema.sql
+++ b/install/database_schema.sql
@@ -244,8 +244,11 @@ CREATE TABLE seeds (
 */
 DROP TABLE IF EXISTS variant_base_ratings CASCADE;
 CREATE TABLE variant_base_ratings (
-  variant_id SMALLINT PRIMARY KEY,
-  rating REAL NOT NULL
+  /* Note that a variant already includes the number of suits, so we do not have to add this here. */
+  variant_id SMALLINT,
+  player_count SMALLINT NOT NULL
+  rating REAL NOT NULL,
+  PRIMARY KEY (variant_id, player_count)
 );
 
 /**
@@ -257,6 +260,7 @@ CREATE TABLE variant_ratings (
   league_id INTEGER PRIMARY KEY REFERENCES games,
 
   variant_id SMALLINT NOT NULL,
+  player_count SMALLINT NOT NULL,
   change REAL NOT NULL,
   value_after REAL NOT NULL,