diff --git a/tests/kdc/check-digest.in b/tests/kdc/check-digest.in
index 1dfa8945e..8fd899b38 100644
--- a/tests/kdc/check-digest.in
+++ b/tests/kdc/check-digest.in
@@ -100,7 +100,7 @@ if [ "$?" != 0 ] ; then
     exit 1
 fi
 
-trap "kill ${kdcpid}; echo signal killing kdc; exit 1;" EXIT
+trap "kill ${kdcpid}; echo signal killing kdc; cat messages.log; exit 1;" EXIT
 
 exitcode=0