lib/image_voodoo/awt.rb in image_voodoo-0.8.6 vs lib/image_voodoo/awt.rb in image_voodoo-0.8.7

@@ -269,9 +269,10 @@
     writer.output = stream
 
     param = writer.default_write_param
     if param.can_write_compressed && @quality
       param.compression_mode = ImageWriteParam::MODE_EXPLICIT
+      param.compression_type ||= param.compression_types.first
       param.compression_quality = @quality
     end
 
     writer.write nil, IIOImage.new(@src, nil, nil), param
   end