X-Git-Url: https://sipb.mit.edu/gitweb.cgi/ikiwiki.git/blobdiff_plain/ad02f69836d988b339c570cfc325b16c1ca88cd3..06709cdf314ed12da5e29658231636372c34da8f:/IkiWiki/Plugin/attachment.pm

diff --git a/IkiWiki/Plugin/attachment.pm b/IkiWiki/Plugin/attachment.pm
index ef6d79a9c..01d0d2478 100644
--- a/IkiWiki/Plugin/attachment.pm
+++ b/IkiWiki/Plugin/attachment.pm
@@ -386,6 +386,9 @@ sub match_virusfree ($$;@) { #{{{
 	waitpid $pid, 0;
 	$SIG{PIPE}="DEFAULT";
 	if ($sigpipe || $?) {
+		if (! length $reason) {
+			$reason="virus checker $IkiWiki::config{virus_checker}; failed with no output";
+		}
 		return IkiWiki::FailReason->new("file seems to contain a virus ($reason)");
 	}
 	else {