img: make img_allowed_formats case-insensitive

1 files changed, 1 insertions, 1 deletions

diff --git a/t/img.t b/t/img.t
index 71b69914e..5531c38d0 100755
--- a/t/img.t
+++ b/t/img.t
@@ -98,7 +98,7 @@ EOF
 );
 ok(utime(333333333, 333333333, "t/tmp/in/imgconversions.mdwn"));
 
-ok(! system(@command, '--set-yaml', 'img_allowed_formats=[jpeg, png, svg, pdf]'));
+ok(! system(@command, '--set-yaml', 'img_allowed_formats=[JPEG, PNG, svg, pdf]'));
 
 sub size($) {
 	my $filename = shift;