diff --git a/Doc/library/asyncio-stream.rst b/Doc/library/asyncio-stream.rst
index cffb79be1cc..22733c1adbf 100644
--- a/Doc/library/asyncio-stream.rst
+++ b/Doc/library/asyncio-stream.rst
@@ -216,7 +216,7 @@ IncompleteReadError
 
 .. exception:: IncompleteReadError
 
-    Incomplete read error.
+    Incomplete read error, subclass of :exc:`EOFError`.
 
    .. attribute:: expected