diff --git a/metal/main.yml b/metal/main.yml
index 985dba14..a9eddee7 100644
--- a/metal/main.yml
+++ b/metal/main.yml
@@ -2,9 +2,6 @@
   hosts: all
   gather_facts: no
   vars_prompt:
-    - name: os_username
-      prompt: Enter username for metal nodes
-      private: no
     - name: os_password
       prompt: Enter password for metal nodes
   roles:
diff --git a/metal/roles/pxe-boot/defaults/main.yml b/metal/roles/pxe-boot/defaults/main.yml
new file mode 100644
index 00000000..b40cbb55
--- /dev/null
+++ b/metal/roles/pxe-boot/defaults/main.yml
@@ -0,0 +1 @@
+os_username: centos