diff --git a/IkiWiki/Plugin/img.pm b/IkiWiki/Plugin/img.pm
index 5c580c03c..d295b833b 100644
--- a/IkiWiki/Plugin/img.pm
+++ b/IkiWiki/Plugin/img.pm
@@ -119,9 +119,9 @@ sub preprocess (@) {
 	}
 
 	my $imgtag='<img src="'.$imgurl.
-		'" alt="'.(exists $params{alt} ? $params{alt} : '').
 		'" width="'.$im->Get("width").
 		'" height="'.$im->Get("height").'"'.
+		(exists $params{alt} ? '" alt="'.$params{alt}.'"' : '').
 		(exists $params{title} ? ' title="'.$params{title}.'"' : '').
 		(exists $params{class} ? ' class="'.$params{class}.'"' : '').
 		(exists $params{id} ? ' id="'.$params{id}.'"' : '').