diff --git a/examples/sphere.py b/examples/sphere.py
index b061dea..00eddc0 100644
--- a/examples/sphere.py
+++ b/examples/sphere.py
@@ -15,7 +15,7 @@
 from time import sleep
 
 import neuroglancer
-from neuroglancer_utils.create_datasets.create_sphere import create_volume
+from neuroglancer_utils.create_datasets.create_sphere import create_sphere
 from neuroglancer_utils.local_server import create_server
 
 from neuroglancer_utils.layer_utils import add_render_panel
@@ -52,7 +52,7 @@ def get_shader():
 
 
 if __name__ == "__main__":
-    create_volume()
+    create_sphere()
     create_server(directory="datasets")
     viewer = launch_nglancer()
     with viewer.txn() as s:
diff --git a/neuroglancer_utils/create_datasets/create_full_cube.py b/neuroglancer_utils/create_datasets/create_full_cube.py
index 12d6918..287b536 100644
--- a/neuroglancer_utils/create_datasets/create_full_cube.py
+++ b/neuroglancer_utils/create_datasets/create_full_cube.py
@@ -1,7 +1,7 @@
 from cloudvolume import CloudVolume
 import numpy as np
 
-def create_volume(output_path="file://datasets/cube"):
+def create_cube(output_path="file://datasets/cube"):
     rawdata = np.full(shape=(100, 100, 100), fill_value=255.0).astype(np.float32)
     CloudVolume.from_numpy(
         rawdata,
diff --git a/neuroglancer_utils/create_datasets/create_sphere.py b/neuroglancer_utils/create_datasets/create_sphere.py
index 626d33d..78da35d 100644
--- a/neuroglancer_utils/create_datasets/create_sphere.py
+++ b/neuroglancer_utils/create_datasets/create_sphere.py
@@ -23,7 +23,7 @@ def create_sphere_in_cube(size, radius):
     return sphere.astype(np.float32) * 255.0
 
 
-def create_volume(output_path="file://datasets/sphere"):
+def create_sphere(output_path="file://datasets/sphere"):
     rawdata = create_sphere_in_cube(100, 0.9)
     #rawdata = np.full(shape=(100, 100, 100), fill_value=255.0).astype(np.float32)
     CloudVolume.from_numpy(