diff --git a/GSM48.st b/GSM48.st
index 15badb8..6fe1d4a 100644
--- a/GSM48.st
+++ b/GSM48.st
@@ -1091,10 +1091,10 @@ GSM48CCMessage subclass: GSM48CCSetup [
         self addOptional: 'facility'  with: GSMFacility.
         self addOptional: 'progress'  with: GSMProgress.
         self addOptional: 'signal'    with: GSMSignal.
-        self addOptional: 'calling'   with: GSMCalledBCDNumber.
-        self addOptional: 'callingSub' with: GSMCalledSubBCDNumber.
-        self addOptional: 'called'    with: GSMCallingBCDNumber.
-        self addOptional: 'calledSub' with: GSMCallingSubBCDNumber.
+        self addOptional: 'calling'   with: GSMCallingBCDNumber.
+        self addOptional: 'callingSub' with: GSMCallingSubBCDNumber.
+        self addOptional: 'called'    with: GSMCalledBCDNumber.
+        self addOptional: 'calledSub' with: GSMCalledSubBCDNumber.
         self addOptional: 'redirect'  with: GSMRedirectingBCDNumber.
         self addOptional: 'redirectSub' with: GSMRedirectingSubBCDNumber.
         self addOptional: 'LLCInd'    with: GSMRepeatInd.