diff --git a/main.py b/main.py
index dd4e426..60ca4f0 100644
--- a/main.py
+++ b/main.py
@@ -30,9 +30,9 @@ def get_db():
         """)
         db.execute("""
             CREATE TABLE IF NOT EXISTS Images (
-                username TEXT PRIMARY KEY,
+                image_hash TEXT PRIMARY KEY
+                username TEXT NOT NULL,
                 filename TEXT NOT NULL,
-                image_hash TEXT NOT NULL
             )
         """)
         db.commit()