diff --git a/analyze.rb b/analyze.rb
index e545c66..881112b 100644
--- a/analyze.rb
+++ b/analyze.rb
@@ -103,6 +103,7 @@ series.each do |series, files|
 end
 edges.uniq!
 # edges.filter! { |e| e[:from] < e[:to] }
+edges.map! { |e| { :from => [e[:from], e[:to]].min, :to => [e[:from], e[:to]].max } }.uniq!
 
 puts ("export const nodes = " + JSON.pretty_unparse(data.values) + ";")
 puts ("export const edges = " + JSON.pretty_unparse(edges) + ";")