diff --git a/modules.d/90crypt/module-setup.sh b/modules.d/90crypt/module-setup.sh
index 58e5f34e..94ad8484 100755
--- a/modules.d/90crypt/module-setup.sh
+++ b/modules.d/90crypt/module-setup.sh
@@ -136,7 +136,7 @@ install() {
                     fi
                 done
             fi
-        done < $dracutsysrootdir/etc/crypttab > $initdir/etc/crypttab
+        done < "$dracutsysrootdir"/etc/crypttab > "$initdir"/etc/crypttab
         mark_hostonly /etc/crypttab
     fi