diff --git a/src/agenda_culturel/migrations/0099_update_categories.py b/src/agenda_culturel/migrations/0099_update_categories.py
index f6cb4f2..ef99df5 100644
--- a/src/agenda_culturel/migrations/0099_update_categories.py
+++ b/src/agenda_culturel/migrations/0099_update_categories.py
@@ -87,9 +87,13 @@ new_cats = [
 def create_categories(apps, catlist):
     Category = apps.get_model("agenda_culturel", "Category")
 
-    cats = [Category(name=c.name, color=c.color, position=c.position, pictogram=c.get_pictogram_file()) for c in catlist]
+    # only create new categories if old ones are present to avoid filling 
+    # an empty database with ghost categories
+    if Category.objects.count() > 1:
 
-    Category.objects.bulk_create(cats)
+        cats = [Category(name=c.name, color=c.color, position=c.position, pictogram=c.get_pictogram_file()) for c in catlist]
+
+        Category.objects.bulk_create(cats)