diff --git a/cli/src/default_config.toml b/cli/src/default_config.toml
index 3dbdf32f..159ed36d 100644
--- a/cli/src/default_config.toml
+++ b/cli/src/default_config.toml
@@ -86,7 +86,7 @@ other = {}
 # plural = 'miles'  # plural name can be omitted if it is
 #                   # the same as the singular name
 # definition = '1609.344 meters'
-# attribute = 'allow_long_prefix'
+# attribute = 'allow-long-prefix'
 # ```
 #
 # If the singular and plural names are the same, you can omit
@@ -109,11 +109,11 @@ other = {}
 # [[custom-units]]
 # singular = 'milli'
 # definition = '0.001'
-# attribute = 'is_long_prefix'
+# attribute = 'is-long-prefix'
 #
 # [[custom-units]]
 # singular = 'byte'
 # plural = 'bytes'
 # definition = '!' # an exclamation mark defines a new base unit
-# attribute = 'allow_long_prefix'
+# attribute = 'allow-long-prefix'
 # ```
diff --git a/cli/src/main.rs b/cli/src/main.rs
index 7dac601e..8de96977 100644
--- a/cli/src/main.rs
+++ b/cli/src/main.rs
@@ -4,7 +4,7 @@
 #![deny(elided_lifetimes_in_paths)]
 
 use std::fmt::Write;
-use std::{error, io, process};
+use std::{error, io, io::Write as _, process};
 
 mod args;
 mod color;
@@ -128,6 +128,7 @@ async fn repl_loop(config: &config::Config) -> ExitCode {
 				},
 				"clear" | "clear()" | ":clear" => {
 					print!("\x1b[2J\x1b[H");
+					io::stdout().flush().expect("failed to flush stdout");
 				}
 				line => {
 					interrupt.reset();