X-Git-Url: http://git.vanrenterghem.biz/git.ikiwiki.info.git/blobdiff_plain/eb30cfb31073bfc6ffeb982f8180d937cc49676d..4af4d26582f0c2b915d7102fb4a604b176385748:/IkiWiki/Plugin/img.pm

diff --git a/IkiWiki/Plugin/img.pm b/IkiWiki/Plugin/img.pm
index c1048d3c9..82db15a7e 100644
--- a/IkiWiki/Plugin/img.pm
+++ b/IkiWiki/Plugin/img.pm
@@ -26,6 +26,10 @@ sub preprocess (@) {
 	my ($image) = $_[0] =~ /$config{wiki_file_regexp}/; # untaint
 	my %params=@_;
 
+	if (! defined $image) {
+		error("bad image filename");
+	}
+
 	if (exists $imgdefaults{$params{page}}) {
 		foreach my $key (keys %{$imgdefaults{$params{page}}}) {
 			if (! exists $params{$key}) {