diff --git a/examples/plot_rz_slices_ring_source.py b/examples/plot_rz_slices_ring_source.py
index f14b158..34c1391 100644
--- a/examples/plot_rz_slices_ring_source.py
+++ b/examples/plot_rz_slices_ring_source.py
@@ -75,7 +75,7 @@
         outline=True,
         norm=LogNorm(),
         slice_index=slice_index,
-        reflect_in_z=True
+        mirror=True
     )
     plot.figure.savefig(f"rz_ring_source_reflected_{slice_index}.png")