diff --git a/examples/expansion-toys.py b/examples/expansion-toys.py
index 78485ce89a875654f0226f5d3edb882251083934..fbae9acd580244e0004d9497bb6b746cddaedea7 100644
--- a/examples/expansion-toys.py
+++ b/examples/expansion-toys.py
@@ -11,8 +11,8 @@ def main():
     tctx = t.ToyContext(
             cl.create_some_context(),
             #LaplaceKernel(2),
-            YukawaKernel(2), extra_source_kwargs={"lam": 5},
-            #HelmholtzKernel(2), extra_source_kwargs={"k": 0.3},
+            YukawaKernel(2), extra_kernel_kwargs={"lam": 5},
+            #HelmholtzKernel(2), extra_kernel_kwargs={"k": 0.3},
             )
 
     pt_src = t.PointSources(