diff --git a/frontend/document/credocument.lua b/frontend/document/credocument.lua
index 745908e89..1f358ce07 100644
--- a/frontend/document/credocument.lua
+++ b/frontend/document/credocument.lua
@@ -1342,6 +1342,7 @@ function CreDocument:register(registry)
     registry:addProvider("epub", "application/epub+zip", self, 100)
     registry:addProvider("epub3", "application/epub+zip", self, 100)
     registry:addProvider("fb2", "application/fb2", self, 90)
+    registry:addProvider("fb2", "text/fb2+xml", self, 90) -- Alternative mimetype for OPDS.
     registry:addProvider("fb2.zip", "application/zip", self, 90)
     registry:addProvider("fb2.zip", "application/fb2+zip", self, 90) -- Alternative mimetype for OPDS.
     registry:addProvider("fb3", "application/fb3", self, 90)