diff --git a/src/de/schildbach/pte/RmvProvider.java b/src/de/schildbach/pte/RmvProvider.java
index 4ce87a89..d6c0174d 100644
--- a/src/de/schildbach/pte/RmvProvider.java
+++ b/src/de/schildbach/pte/RmvProvider.java
@@ -663,6 +663,11 @@ public class RmvProvider extends AbstractHafasProvider
 			throw new IllegalStateException("cannot normalize type " + type + " number " + number + " line " + line);
 		}
 
+		if ("11".equals(line))
+			return "T11";
+		if ("12".equals(line))
+			return "T12";
+
 		throw new IllegalStateException("cannot normalize line " + line);
 	}