diff --git a/misc-scripts/ontology/sql/tables.sql b/misc-scripts/ontology/sql/tables.sql
index a3d824c79070760a50fc532e60c728e1c515a1f6..e993580cdf0d5a97ee111d34dc578a3ea8491fb6 100644
--- a/misc-scripts/ontology/sql/tables.sql
+++ b/misc-scripts/ontology/sql/tables.sql
@@ -77,6 +77,7 @@ CREATE TABLE synonym (
   synonym_id    INT UNSIGNED NOT NULL AUTO_INCREMENT,
   term_id       INT UNSIGNED NOT NULL,
   name          TEXT NOT NULL,
+  type		ENUM('EXACT', 'BROAD', 'NARROW', 'RELATED'),
 
   PRIMARY KEY (synonym_id),
   UNIQUE INDEX term_synonym_idx (term_id, synonym_id),