diff --git a/GSM48.st b/GSM48.st
index 891f8c7..7f46bed 100644
--- a/GSM48.st
+++ b/GSM48.st
@@ -706,7 +706,7 @@ GSM48VariableSizedIE subclass: GSM48MIdentity [
 GSM48SimpleData subclass: GSM48RejectCause [
     <category: 'OsmoGSM'>
 
-    <gsmName: 'prio'>
+    <gsmName: 'cause'>
     <gsmValueLength: 1>
 
     GSM48RejectCause class >> createDefault [