diff --git a/script/update_headers b/script/update_headers
index b44c255..1050704 100755
--- a/script/update_headers
+++ b/script/update_headers
@@ -20,7 +20,6 @@ main() {
 }
 
 check_class_dump() {
-  # command: usage: command [-pVv] command [arg ...]
   if ! command -v class-dump; then
     echo "class-dump is not installed." >&2
     echo "Download from http://stevenygard.com/projects/class-dump/" >&2