diff --git a/src/cryptsetup/cryptsetup-generator.c b/src/cryptsetup/cryptsetup-generator.c
index 4056d1ddd..f714c8c24 100644
--- a/src/cryptsetup/cryptsetup-generator.c
+++ b/src/cryptsetup/cryptsetup-generator.c
@@ -120,7 +120,7 @@ static int create_disk(
                 "# Automatically generated by systemd-cryptsetup-generator\n\n"
                 "[Unit]\n"
                 "Description=Cryptography Setup for %%I\n"
-                "Documentation=man:systemd-cryptsetup@.service(8)\n"
+                "Documentation=man:systemd-cryptsetup@.service(8) man:crypttab(5)\n"
                 "SourcePath=/etc/crypttab\n"
                 "Conflicts=umount.target\n"
                 "DefaultDependencies=no\n"