diff --git a/challenges/linux-luminarium/chaining/execution/challenge/.bashrc b/challenges/linux-luminarium/chaining/execution/challenge/.bashrc
index 1083bb140..9109a1a1c 100644
--- a/challenges/linux-luminarium/chaining/execution/challenge/.bashrc
+++ b/challenges/linux-luminarium/chaining/execution/challenge/.bashrc
@@ -2,6 +2,7 @@ function check_cmd {
 	BCMD=($BASH_COMMAND)
 
 	[ "${#BCMD[@]}" -eq 1 ] || return 0
+	BCMD[0]="${BCMD[0]/#\~/$HOME}"
 	[ -f "${BCMD[0]}" ] || return 0
 	FILE=$(realpath ${BCMD[0]})
 	[[ "$FILE" == $HOME/* ]] || return 0