diff --git a/DOCS/man/ao.rst b/DOCS/man/ao.rst
index e02a5886ff..2b54da7f57 100644
--- a/DOCS/man/ao.rst
+++ b/DOCS/man/ao.rst
@@ -166,7 +166,7 @@ Available audio output drivers are:
         Change the physical format to one similar to the requested audio format
         (default: no). This has the advantage that multichannel audio output
         will actually work. The disadvantage is that it will change the
-        system-wide audio settings. This is equivalent to change the ``Format``
+        system-wide audio settings. This is equivalent to changing the ``Format``
         setting in the ``Audio Devices`` dialog in the ``Audio MIDI Setup``
         utility. Note that this does not effect the selected speaker setup.