X-Git-Url: https://sipb.mit.edu/gitweb.cgi/ikiwiki.git/blobdiff_plain/a9b7f01ec816944d5517bf6a800bd0b4bb07937a..8b31c53366bbee51b36501443eafd0f712ee6a4c:/IkiWiki/Plugin/postsparkline.pm

diff --git a/IkiWiki/Plugin/postsparkline.pm b/IkiWiki/Plugin/postsparkline.pm
index ac7ad9d73..9e885741e 100644
--- a/IkiWiki/Plugin/postsparkline.pm
+++ b/IkiWiki/Plugin/postsparkline.pm
@@ -56,6 +56,11 @@ sub preprocess (@) { #{{{
 		return "[[postsparkline error $@]]";
 	}
 
+	if (! @data) {
+		# generate an empty graph
+		push @data, 0 foreach 1..($params{max} / 2);
+	}
+
 	my $color=exists $params{color} ? "($params{color})" : "";
 
 	delete $params{pages};