diff --git a/mkosi.sanitizers/mkosi.postinst b/mkosi.sanitizers/mkosi.postinst
index fb609951b2..582a7cb99d 100755
--- a/mkosi.sanitizers/mkosi.postinst
+++ b/mkosi.sanitizers/mkosi.postinst
@@ -82,6 +82,7 @@ wrap=(
     su
     tar
     tgtd
+    unix_chkpwd
     useradd
     userdel
     veritysetup