diff --git a/db/nexrad.sql b/db/nexrad.sql
index 7615faa..0dcd2db 100644
--- a/db/nexrad.sql
+++ b/db/nexrad.sql
@@ -48,6 +48,7 @@ create table nexrad_afos_message (
     timestamp_issued TIMESTAMP NOT NULL,
     timestamp_start  TIMESTAMP NOT NULL,
     timestamp_end    TIMESTAMP NOT NULL,
+    serial           INTEGER NOT NULL,
     vtec_type        TEXT NOT NULL,
     actions          TEXT NOT NULL,
     wfo              TEXT NOT NULL,