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-rw-r--r--lib/wrongdoc/merge.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/wrongdoc/merge.rb b/lib/wrongdoc/merge.rb
index b51ee5a..0c4157e 100644
--- a/lib/wrongdoc/merge.rb
+++ b/lib/wrongdoc/merge.rb
@@ -2,7 +2,7 @@ class Wrongdoc::Merge
   include Wrongdoc::ParseXML
 
   def initialize(opts)
-    @merge_html = opts[:merge_html]
+    @merge_html = opts[:merge_html] || {}
   end
 
   def run