lib/brief/document/structure.rb in brief-1.7.2 vs lib/brief/document/structure.rb in brief-1.7.3

@@ -152,10 +152,10 @@
         def is_header?(element)
           element.name.to_s.downcase.match(/^h\d$/)
         end
 
         def level(element)
-          element.name.to_s.gsub(/^h/i, '').to_i
+          (element && element.name.to_s.gsub(/^h/i, '')).to_i
         end
       end
     end
   end
 end