diff --git a/app/api/routes/node_storage.py b/app/api/routes/node_storage.py
index c5211e5..85cd1da 100644
--- a/app/api/routes/node_storage.py
+++ b/app/api/routes/node_storage.py
@@ -55,7 +55,7 @@ async def s_api_v1_storage_post(request):
 
         new_content = StoredContent(
             type="local/content_bin",
-            user_id=request.ctx.user.id if request.ctx.user else 0,
+            user_id=request.ctx.user.id if request.ctx.user else None,
             hash=file_hash,
             filename=file_name,
             meta=file_meta,
diff --git a/app/core/models/node_storage.py b/app/core/models/node_storage.py
index e4077f8..433f3b1 100644
--- a/app/core/models/node_storage.py
+++ b/app/core/models/node_storage.py
@@ -18,7 +18,7 @@ class StoredContent(AlchemyBase):
     filename = Column(String(1024), nullable=False)
     meta = Column(JSON, nullable=False, default={})
 
-    user_id = Column(Integer, ForeignKey('users.id'), nullable=False)
+    user_id = Column(Integer, ForeignKey('users.id'), nullable=True)
     owner_address = Column(String(1024), nullable=True)
 
     btfs_cid = Column(String(1024), nullable=True)