Images not included with asset pipeline hash

[fippu82]

I use the button to include an image. It's displayed in the editor when writing for example /assets/abc.jpg. It only works when I test on the dev system where I don't have rails asset pipelin. In Production, the hash string is missing in the filename and the browser fails to find the image.
Is there an option to activate that in wysihtml?

Thanks,
Philippe