diff --git a/util/bash-completion.d/grub-completion.bash.in b/util/bash-completion.d/grub-completion.bash.in
index a85f18f05..213ce1e57 100644
--- a/util/bash-completion.d/grub-completion.bash.in
+++ b/util/bash-completion.d/grub-completion.bash.in
@@ -63,6 +63,7 @@ __grubcomp () {
 
 # Function that return long options from the help of the command
 # - arg: $1 (optional) command to get the long options from
+# shellcheck disable=SC2120
 __grub_get_options_from_help () {
      local prog