diff --git a/CODE_SIGNING.md b/CODE_SIGNING.md
index 8f8c5827..8c54cb28 100644
--- a/CODE_SIGNING.md
+++ b/CODE_SIGNING.md
@@ -36,7 +36,7 @@ First, you'll need to configure a PIN (this only needs to be done once for each
 7. Enter "freedv-gui" for "Subject" and click "Next".
 8. Verify that the settings appear like the below screenshot, then click "Generate":
 
-TBD screenshot
+![](./doc/csr-generation.png)
 
 9. Choose a location to save the CSR to, then click "Save".
 10. Enter your YubiKey's management key (you can choose "Use default" for the management key) and PIN.
diff --git a/doc/csr-generation.png b/doc/csr-generation.png
new file mode 100644
index 00000000..5ee72157
Binary files /dev/null and b/doc/csr-generation.png differ