diff --git a/src/GSMLURequest.st b/src/GSMLURequest.st
index 7e9272d..427a9d3 100644
--- a/src/GSMLURequest.st
+++ b/src/GSMLURequest.st
@@ -56,6 +56,7 @@ GSMTransaction subclass: GSMLURequest [
 
     timeOut [
         self logError: 'GSMLURequest(srcref:%1) timeout.' % {con srcRef} area: #bsc.
+        self nextPutSapi: OsmoGSM.GSM48LUReject new.
         con removeTransaction: self.
     ]
 ]