diff --git a/docs/examples/system-models/oedi_9068.py b/docs/examples/system-models/oedi_9068.py
index 9a73bfa9ce..8294843353 100644
--- a/docs/examples/system-models/oedi_9068.py
+++ b/docs/examples/system-models/oedi_9068.py
@@ -145,7 +145,8 @@
         'albedo', 'precipitable_water']
 psm3, psm3_metadata = pvlib.iotools.get_nsrdb_psm4_conus(latitude, longitude,
                                                          api_key, email,
-                                                         year=2019, interval=5,
+                                                         year=2019,
+                                                         time_step=5,
                                                          parameters=keys,
                                                          map_variables=True,
                                                          leap_day=True)
diff --git a/docs/sphinx/source/whatsnew/v0.15.3.rst b/docs/sphinx/source/whatsnew/v0.15.3.rst
index 87ded069ee..754f1d367f 100644
--- a/docs/sphinx/source/whatsnew/v0.15.3.rst
+++ b/docs/sphinx/source/whatsnew/v0.15.3.rst
@@ -23,6 +23,9 @@ Enhancements
 Documentation
 ~~~~~~~~~~~~~
 
+* Fixed broken ``interval`` keyword argument in the ``oedi_9068`` gallery
+  example; the correct parameter name is ``time_step``. (:issue:`2791`)
+
 
 Testing
 ~~~~~~~