diff --git a/data/9xxx-in-mob-prefix.csv b/data/9xxx-in-mob-prefix.csv
index 696d5fe..0a20825 100644
--- a/data/9xxx-in-mob-prefix.csv
+++ b/data/9xxx-in-mob-prefix.csv
@@ -311,7 +311,7 @@ series,operator,circle
 9309,RJ,MH
 9310,RJ,DL
 9311,AT,DL
-9312L
+9312,,
 9313,RJ,GJ
 9314,,
 9315,RJ,DL