diff --git a/sbas/admin.py b/sbas/admin.py
index 807c51be..76ead7a8 100644
--- a/sbas/admin.py
+++ b/sbas/admin.py
@@ -1,8 +1,7 @@
-from physics.models import Category
 from django.contrib import admin
 
 # Register your models here.
-from .models import Question, Exam, CidUserAnswer
+from .models import Question, Exam, CidUserAnswer, Category
 
 import tagulous.admin