diff --git a/app/models/concerns/host_common.rb b/app/models/concerns/host_common.rb
index 524b3e6d0af..5a61bddf6a5 100644
--- a/app/models/concerns/host_common.rb
+++ b/app/models/concerns/host_common.rb
@@ -152,8 +152,9 @@ def image_file
   end
 
   def crypt_passwords
-    self.root_pass = crypt_pass(self[:root_pass], :root)
-    self.grub_pass = crypt_pass(self[:grub_pass] || self[:root_pass], :grub)
+    root_pass = self[:root_pass]
+    self.root_pass = crypt_pass(root_pass, :root)
+    self.grub_pass = crypt_pass(self[:grub_pass] || root_pass, :grub)
   end
 
   def crypt_pass(unencrypted_pass, pass_kind)