diff --git a/core/services/job/orm.go b/core/services/job/orm.go
index 92ec9b2e83c..514ab2aac7c 100644
--- a/core/services/job/orm.go
+++ b/core/services/job/orm.go
@@ -324,6 +324,11 @@ func (o *orm) CreateJob(ctx context.Context, jb *Job) error {
 					return errors.New("invalid transmitter address in dual transmission config")
 				}
 
+				_, ok = dualTransmissionConfig["meta"].(map[string][]string)
+				if !ok || !common.IsHexAddress(dtTransmitterAddress) {
+					return errors.New("invalid dual transmission config")
+				}
+
 				if err = validateKeyStoreMatchForRelay(ctx, jb.OCR2OracleSpec.Relay, tx.keyStore, dtTransmitterAddress); err != nil {
 					return errors.Wrap(err, "unknown dual transmission transmitterAddress")
 				}