diff --git a/var/spack/repos/builtin/packages/util-linux/package.py b/var/spack/repos/builtin/packages/util-linux/package.py
index bc703913292..5a74c5ad556 100644
--- a/var/spack/repos/builtin/packages/util-linux/package.py
+++ b/var/spack/repos/builtin/packages/util-linux/package.py
@@ -36,6 +36,8 @@ class UtilLinux(AutotoolsPackage):
     depends_on("python@2.7:", type="build")
     depends_on("pkgconfig", type="build")
     depends_on("ncurses", type="link")
+    depends_on("zlib", type="link")  # sbin/mkfs.cramfs
+    depends_on("libxcrypt", type="link")  # sbin/sulogin
 
     variant("bash", default=False, description="Install bash completion scripts")