diff --git a/admin_interface/admin.py b/admin_interface/admin.py
index 00d60c3..3f69642 100644
--- a/admin_interface/admin.py
+++ b/admin_interface/admin.py
@@ -13,7 +13,7 @@ class UserInline(admin.TabularInline):
     autocomplete_fields = ('user', )
 
 
-class ThemeAdmin(admin.ModelAdmin):
+class ThemeAdmin(ImportMixin, admin.ModelAdmin):
     inlines = [UserInline, ]
 
     list_display = (