diff --git a/frontend/document/pdfdocument.lua b/frontend/document/pdfdocument.lua
index ece5944b4..6b536f948 100644
--- a/frontend/document/pdfdocument.lua
+++ b/frontend/document/pdfdocument.lua
@@ -115,6 +115,7 @@ end
 function PdfDocument:register(registry)
 	registry:addProvider("pdf", "application/pdf", self)
 	registry:addProvider("cbz", "application/cbz", self)
+	registry:addProvider("xps", "application/xps", self)
 end
 
 return PdfDocument