diff --git a/gridlock/read.py b/gridlock/read.py
index 44f1c8a..7b4de1e 100644
--- a/gridlock/read.py
+++ b/gridlock/read.py
@@ -165,7 +165,7 @@ 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()`
+            contour_args: Args passed through to matplotlib `pcolormesh()`
             ax: If provided, plot to these axes (instead of creating a new figure & axes)
             level_fraction: Value between 0 and 1 which tunes how many contours are generated.
                 1 indicates that every possible step should have its own contour.
@@ -181,8 +181,8 @@ class GridReadMixin(GridPosMixin):
         if isinstance(plane, dict):
             plane = Plane(**plane)
 
-        if pcolormesh_args is None:
-            pcolormesh_args = dict(alpha=0.8, colors='gray')
+        if contour_args is None:
+            contour_args = dict(alpha=0.8, colors='gray')
 
         grid_slice = self.get_slice(
             cell_data = cell_data,