diff --git a/src/bin/coreutils.rs b/src/bin/coreutils.rs
index 9cb49d45c..2821988c2 100644
--- a/src/bin/coreutils.rs
+++ b/src/bin/coreutils.rs
@@ -3,7 +3,7 @@
 // For the full copyright and license information, please view the LICENSE
 // file that was distributed with this source code.
 
-// spell-checker:ignore manpages mangen
+// spell-checker:ignore manpages mangen prefixcat testcat
 
 use clap::{Arg, Command};
 use clap_complete::Shell;