diff --git a/docs/api/cli.md b/docs/api/cli.md
index 5a7a12b..47f06ae 100644
--- a/docs/api/cli.md
+++ b/docs/api/cli.md
@@ -40,15 +40,3 @@ The command-line interface module provides functions for the tzst CLI tool.
 ```{eval-rst}
 .. autofunction:: tzst.cli.validate_compression_level
 ```
-
-### format_size
-
-```{eval-rst}
-.. autofunction:: tzst.cli.format_size
-```
-
-### validate_compression_level
-
-```{eval-rst}
-.. autofunction:: tzst.cli.validate_compression_level
-```