diff --git a/src/sampleconf/recoll.conf b/src/sampleconf/recoll.conf
index 3ddda601..a733032e 100644
--- a/src/sampleconf/recoll.conf
+++ b/src/sampleconf/recoll.conf
@@ -135,16 +135,18 @@ skippedPaths = /media
 
 # <var name="indexedmimetypes" type="string"><brief>Restrictive list of
 # indexed mime types.</brief><descr>Normally not set (in which case all
-# supported types are indexed). If it is set, 
-# only the types from the list will have their contents indexed. The names
-# will be indexed anyway if indexallfilenames is set (default). MIME
-# type names should be taken from the mimemap file. Can be redefined for
-# subtrees.</descr></var>
+# supported types are indexed). If it is set, only the types from the list
+# will have their contents indexed. The names will be indexed anyway if
+# indexallfilenames is set (default). MIME type names should be taken from
+# the mimemap file (the values may be different from xdg-mime or file -i
+# output in some cases). Can be redefined for subtrees.</descr></var>
 #indexedmimetypes = 
 
 # <var name="excludedmimetypes" type="string"><brief>List of excluded MIME
-# types.</brief><descr>Lets you exclude some types from indexing. Can be
-# redefined for subtrees.</descr></var>
+# types.</brief><descr>Lets you exclude some types from indexing. MIME type
+# names should be taken from the mimemap file (the values may be different
+# from xdg-mime or file -i output in some cases) Can be redefined for
+# subtrees.</descr></var>
 #excludedmimetypes = 
 
 # <var name="nomd5mimetypes" type="string"><brief>Don't compute md5 for