diff --git a/tests/gss/check-basic.in b/tests/gss/check-basic.in
index c4a9948dd..06e22ee9c 100644
--- a/tests/gss/check-basic.in
+++ b/tests/gss/check-basic.in
@@ -70,6 +70,8 @@ rm -f current-db*
 rm -f out-*
 rm -f mkey.file*
 
+> messages.log
+
 echo Creating database
 ${kadmin} \
     init \