diff --git a/sql/v01/11.create.client.sql b/sql/v01/11.create.client.sql
index b9fd833..aa0c547 100644
--- a/sql/v01/11.create.client.sql
+++ b/sql/v01/11.create.client.sql
@@ -210,12 +210,12 @@ CREATE TABLE area_commitment (
 CREATE TABLE member_history (
     mgnr            INTEGER NOT NULL,
     date            TEXT    NOT NULL CHECK (date REGEXP '^[1-9][0-9]{3}-(0[1-9]|1[012])-(0[1-9]|[12][0-9]|3[01])$') DEFAULT CURRENT_DATE,
+    type            TEXT    NOT NULL CHECK (type REGEXP '^[a-z_]+$'),
 
     business_shares INTEGER NOT NULL,
-    type            TEXT    NOT NULL CHECK (type REGEXP '^[a-z_]+$'),
     comment         TEXT DEFAULT NULL,
 
-    CONSTRAINT pk_member_history PRIMARY KEY (mgnr, date),
+    CONSTRAINT pk_member_history PRIMARY KEY (mgnr, date, type),
     CONSTRAINT fk_member_history_member FOREIGN KEY (mgnr) REFERENCES member (mgnr)
         ON UPDATE CASCADE
         ON DELETE CASCADE
diff --git a/sql/v01/99.schema_version.sql b/sql/v01/99.schema_version.sql
index 83edc79..98f6304 100644
--- a/sql/v01/99.schema_version.sql
+++ b/sql/v01/99.schema_version.sql
@@ -1,3 +1,3 @@
 
 -- This value MUST NOT be changed while other connections are open!
-PRAGMA schema_version = 2000;
+PRAGMA schema_version = 2100;