diff --git a/mne/io/eyelink/eyelink.py b/mne/io/eyelink/eyelink.py
index 192a5555465..f8b2e8faff6 100644
--- a/mne/io/eyelink/eyelink.py
+++ b/mne/io/eyelink/eyelink.py
@@ -69,7 +69,7 @@ def read_raw_eyelink(
 
 @fill_doc
 class RawEyelink(BaseRaw):
-    """Raw object from an XXX file.
+    """Raw object from an ``.asc`` file.
 
     Parameters
     ----------