diff --git a/sql/tables.sql b/sql/tables.sql
index 6e3cfb5..d082e70 100644
--- a/sql/tables.sql
+++ b/sql/tables.sql
@@ -316,6 +316,11 @@ ADD CONSTRAINT PK_document_fields
 PRIMARY KEY (id)
 ;
 
+ALTER TABLE data_types
+ADD CONSTRAINT PK_data_types
+PRIMARY KEY(id)
+;
+
 ALTER TABLE document_fields_link
 ADD CONSTRAINT PK_document_fields_link
 PRIMARY KEY (id)
@@ -386,6 +391,11 @@ ADD CONSTRAINT PK_language_lookup
 PRIMARY KEY (id)
 ;
 
+ALTER TABLE metadata_lookup
+ADD CONSTRAINT PK_metadata_lookup
+PRIMARY KEY (id)
+;
+
 ALTER TABLE groups_units_link
 ADD CONSTRAINT PK_groups_units_link
 PRIMARY KEY (id)