diff --git a/tests/p_which/which_fail.sh b/tests/p_which/which_fail.sh
new file mode 100755
index 0000000..a3420b6
--- /dev/null
+++ b/tests/p_which/which_fail.sh
@@ -0,0 +1,7 @@
+#!/bin/bash
+# Author: Alice Kaerast <alice@kaerast.info>
+
+t_Log "Running $0 - Checking which can fails on non-existing commands"
+which abc123 2> /dev/null
+[ $? -eq 1 ] || { t_Log "Which should have exited with 1 for a non-existing file"; exit $FAIL; }
+t_CheckExitStatus $?