lib/prawn/emoji/image.rb in prawn-emoji-1.0.1 vs lib/prawn/emoji/image.rb in prawn-emoji-1.0.2

@@ -20,10 +20,10 @@
       end
 
       private
 
       def codepoint
-        @codepoint ||= @unicode.codepoints.map { |c| c.to_s(16) }.join.upcase
+        @codepoint ||= @unicode.codepoints.map { |c| '%04x' % c.to_s }.join.upcase
       end
     end
   end
 end