diff --git a/src/dokuwiki.scm b/src/dokuwiki.scm
index db944ce..c246fe7 100644
--- a/src/dokuwiki.scm
+++ b/src/dokuwiki.scm
@@ -74,8 +74,8 @@
    (handle-exceptions
     exn
     (let ()
-      (log-warning "DokuWiki: cannot open ~A" fname)
-      (stdout-printf "DokuWiki: cannot open ~A" fname)
+      (log-warning "DokuWiki (~A) exception ~A" fname exn)
+      (stdout-printf "DokuWiki (~A) exception ~A" fname exn)
       '())
     (with-input-from-file fname
       parse-dokuwiki-users-auth)))