diff --git a/kamailio/db_scripts/check-kazoodb-sql.sh b/kamailio/db_scripts/check-kazoodb-sql.sh
index 0937e3b..ab00bec 100755
--- a/kamailio/db_scripts/check-kazoodb-sql.sh
+++ b/kamailio/db_scripts/check-kazoodb-sql.sh
@@ -18,7 +18,7 @@ DB_CURRENT_VERSION=`KazooDB -db ${DB_CURRENT_DB} "select sum(table_version) from
 if [[ $DB_CURRENT_VERSION -ne $DB_VERSION ]]; then
    echo "db required version is ${DB_VERSION}, existing version is ${DB_CURRENT_VERSION}, applying diff"
    KazooDB-diff --schema  ${DB_CURRENT_DB} ${TEMP_DB} | KazooDB -db ${DB_CURRENT_DB}
-   KazooDB-diff --table version ${DB_CURRENT_DB} ${TEMP_DB} | KazooDB -db ${DB_CURRENT_DB}
+   KazooDB-diff --primarykey --table version ${DB_CURRENT_DB} ${TEMP_DB} | KazooDB -db ${DB_CURRENT_DB}
 fi
 
 
diff --git a/kamailio/db_scripts/kazoodb-sql.sh b/kamailio/db_scripts/kazoodb-sql.sh
index 2c07f39..6351266 100755
--- a/kamailio/db_scripts/kazoodb-sql.sh
+++ b/kamailio/db_scripts/kazoodb-sql.sh
@@ -15,7 +15,7 @@ cat << EOF
 CREATE TABLE version (
     table_name VARCHAR(32) NOT NULL,
     table_version INTEGER DEFAULT 0 NOT NULL,
-    CONSTRAINT version_table_name_idx UNIQUE (table_name)
+    PRIMARY KEY(table_name)
 );
 INSERT INTO version VALUES('version',1);