Inline user profile not being displayed

DAMMIT.py

from django.contrib import admin
#from django.contrib.auth.admin import UserAdmin
from django.contrib.auth.models import User

from models import Profile
from baseapp.admin import StudentAdminInline

class ProfileAdmin(admin.ModelAdmin):
    exclude = ('activation_key',)

class ProfileAdminInline(admin.StackedInline):
    model = Profile
    max_num = 1
    can_delete = False
    exclude = ('activation_key',)
    
class CustomizedUserAdmin(admin.ModelAdmin):
    model = User
    inlines = [ProfileAdminInline]
    exclude = ('first_name', 'last_name')

admin.site.unregister(User)
admin.site.register(User, CustomizedUserAdmin)
#dmin.site.register(Profile, ProfileAdmin)