diff --git a/resources/images/mimetypes/kfx.png b/resources/images/mimetypes/kfx.png
new file mode 100644
index 0000000000..8e1d5c4476
Binary files /dev/null and b/resources/images/mimetypes/kfx.png differ
diff --git a/src/calibre/utils/file_type_icons.py b/src/calibre/utils/file_type_icons.py
index b4b52d811d..af8e963178 100644
--- a/src/calibre/utils/file_type_icons.py
+++ b/src/calibre/utils/file_type_icons.py
@@ -37,6 +37,8 @@ EXT_MAP = {
     'azw1'    : 'tpz',
     'azw2'    : 'azw2',
     'azw3'    : 'azw3',
+    'kfx'     : 'kfx',
+    'kfx-zip' : 'kfx',
     'azw4'    : 'pdf',
     'tpz'     : 'tpz',
     'tan'     : 'zero',