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-rw-r--r--IkiWiki/Plugin/postsparkline.pm5
1 files changed, 5 insertions, 0 deletions
diff --git a/IkiWiki/Plugin/postsparkline.pm b/IkiWiki/Plugin/postsparkline.pm
index ac7ad9d73..dc996ae32 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};
+ }
+
my $color=exists $params{color} ? "($params{color})" : "";
delete $params{pages};