remove extra backtick
diff --git a/Doc/library/asyncio-subprocess.rst b/Doc/library/asyncio-subprocess.rst
index 04610aa..4c399c6 100644
--- a/Doc/library/asyncio-subprocess.rst
+++ b/Doc/library/asyncio-subprocess.rst
@@ -8,7 +8,7 @@
 
 .. function:: create_subprocess_shell(cmd, stdin=None, stdout=None, stderr=None, loop=None, limit=None, \*\*kwds)
 
-   Run the shell command *cmd* (:class:`str`)`. Return a :class:`Process`
+   Run the shell command *cmd* given as a string. Return a :class:`Process`
    instance.
 
    This function returns a :ref:`coroutine object <coroutine>`.