diff --git a/hooks/_common.sh b/hooks/_common.sh
index 730848997..d6dbbb272 100644
--- a/hooks/_common.sh
+++ b/hooks/_common.sh
@@ -348,7 +348,9 @@ function common::per_dir_hook {
 
   local pids=()
 
-  mapfile -t dir_paths_unique < <(echo "${dir_paths[@]}" | tr ' ' '\n' | sort -u)
+  # shellcheck disable=SC2207 # More readable way
+  local -a dir_paths_unique=($(printf '%s\n' "${dir_paths[@]}" | sort -u))
+
   local length=${#dir_paths_unique[@]}
   local last_index=$((${#dir_paths_unique[@]} - 1))