Unknown MIME type: "image/vnd.djvu+multipage"

apt-get install qpdfview-djvu-plugin
# will install files:
# - pool/universe/q/qpdfview/qpdfview_0.4.14-1_amd64.deb
# - pool/universe/q/qpdfview/qpdfview-djvu-plugin_0.4.14-1_amd64.deb

qpdfview /path/to/file.djvu
# will print:
Unknown MIME type: "image/vnd.djvu+multipage"
"Could not match file type of '/path/to/file.djvu'!"
Could not load plug-in in first attempt: ""
"The shared library was not found."
Could not load plug-in in second attempt: ""
"The shared library was not found."
Unknown MIME type: "image/vnd.djvu+multipage"
"Could not match file type of '/path/to/file.djvu'!"