diff --git a/sql/init.sql b/sql/init.sql
index 9204dfe..20d3416 100644
--- a/sql/init.sql
+++ b/sql/init.sql
@@ -48,10 +48,10 @@ CREATE INDEX IF NOT EXISTS radusergroup_username ON radusergroup (username);
 CREATE TABLE IF NOT EXISTS radacct (
     radacctid BIGSERIAL PRIMARY KEY,
     acctsessionid VARCHAR(64) NOT NULL DEFAULT '',
-    acctuniqueid VARCHAR(32) NOT NULL DEFAULT '',
+    acctuniqueid VARCHAR(32) NOT NULL UNIQUE DEFAULT '',
     username VARCHAR(64) NOT NULL DEFAULT '',
     realm VARCHAR(64) DEFAULT '',
-    nasipaddress VARCHAR(15) NOT NULL DEFAULT '',
+    nasipaddress VARCHAR(46) NOT NULL DEFAULT '',
     nasportid VARCHAR(32) DEFAULT NULL,
     nasporttype VARCHAR(32) DEFAULT NULL,
     acctstarttime TIMESTAMP WITH TIME ZONE DEFAULT NULL,
@@ -69,7 +69,7 @@ CREATE TABLE IF NOT EXISTS radacct (
     acctterminatecause VARCHAR(32) NOT NULL DEFAULT '',
     servicetype VARCHAR(32) DEFAULT NULL,
     framedprotocol VARCHAR(32) DEFAULT NULL,
-    framedipaddress VARCHAR(15) NOT NULL DEFAULT '',
+    framedipaddress VARCHAR(46) NOT NULL DEFAULT '',
     framedipv6address VARCHAR(45) NOT NULL DEFAULT '',
     framedipv6prefix VARCHAR(45) NOT NULL DEFAULT '',
     framedinterfaceid VARCHAR(44) NOT NULL DEFAULT '',