diff --git a/backend/open_webui/env.py b/backend/open_webui/env.py
index 19d09a62d3..786725d1c5 100644
--- a/backend/open_webui/env.py
+++ b/backend/open_webui/env.py
@@ -339,14 +339,12 @@ else:
     except Exception:
         DATABASE_POOL_RECYCLE = 3600
 
-DATABASE_ENABLE_SQLITE_WAL = (os.environ.get("DATABASE_ENABLE_SQLITE_WAL", "False").lower() == "true")
-
-DATABASE_DEDUPLICATE_INTERVAL = (
-    os.environ.get("DATABASE_DEDUPLICATE_INTERVAL", 0.)
+DATABASE_ENABLE_SQLITE_WAL = (
+    os.environ.get("DATABASE_ENABLE_SQLITE_WAL", "False").lower() == "true"
 )
-if DATABASE_DEDUPLICATE_INTERVAL == "":
-    DATABASE_DEDUPLICATE_INTERVAL = 0.0
-else:
+
+DATABASE_DEDUPLICATE_INTERVAL = os.environ.get("DATABASE_DEDUPLICATE_INTERVAL", None)
+if DATABASE_DEDUPLICATE_INTERVAL is not None:
     try:
         DATABASE_DEDUPLICATE_INTERVAL = float(DATABASE_DEDUPLICATE_INTERVAL)
     except Exception: