diff --git a/README.md b/README.md
index a5e1810..5ee9552 100644
--- a/README.md
+++ b/README.md
@@ -39,9 +39,9 @@ pip install --editable .
 
 In this mode, you get the `chap` command-line program installed, but you are able to edit the source files in the `src` directory in place.
 
-### Via `chap.py`
+### Via `chap-dev.py`
 
-A simple shim script called `chap.py` is included to demonstrate how to load and run the `chap` library without installing `chap` in development mode. This may be more familiar to some developers.
+A simple shim script called `chap-dev.py` is included to demonstrate how to load and run the `chap` library without installing `chap` in development mode. This method may be more familiar to some developers.
 
 Change directory to the root of the `chap` project.
 
@@ -54,7 +54,7 @@ pip install -r requirements.txt
 Run the shim script (with optional command flags as appropriate):
 
 ```shell
-./chap.py
+./chap-dev.py
 ```
 
 In this mode, you can edit the source files in the `src` directory in place, and the shim script will pick up the changes via the `import` directive.
diff --git a/chap-dev.py b/chap-dev.py
index 7cc3963..3b023e6 100755
--- a/chap-dev.py
+++ b/chap-dev.py
@@ -3,7 +3,7 @@
 #
 # SPDX-License-Identifier: MIT
 
-# chap.py - Simple shim script to demonstrate how to use the chap library.
+# chap-dev.py - Simple shim script to demonstrate how to use the chap library.
 
 import pathlib
 import sys
@@ -20,5 +20,5 @@ if __name__ == "__main__":
     main()
 else:
     raise ImportError(
-        "'chap.py' is meant for direct execution, not for import."
+        "'chap-dev.py' is meant for direct execution, not for import."
     )