diff --git a/gridlock/read.py b/gridlock/read.py
index 707251a..cfc8f3d 100644
--- a/gridlock/read.py
+++ b/gridlock/read.py
@@ -98,6 +98,7 @@ class GridReadMixin(GridPosMixin):
             which_shifts: Which grid to display. Default is the first grid (0).
             sample_period: Period for down-sampling the image. Default 1 (disabled)
             finalize: Whether to call `pyplot.show()` after constructing the plot. Default `True`
+            pcolormesh_args: Args passed through to matplotlib `pcolormesh()`
 
         Returns:
             (Figure, Axes)