diff --git a/lightrag/api/lightrag_server.py b/lightrag/api/lightrag_server.py
index 38d44d05..14a3e3b8 100644
--- a/lightrag/api/lightrag_server.py
+++ b/lightrag/api/lightrag_server.py
@@ -702,8 +702,8 @@ def create_app(args):
         args=args,  # Pass args object for fallback option generation
     )
 
-    # Check environment variable for sending dimensions
-    embedding_send_dim = os.getenv("EMBEDDING_SEND_DIM", "false").lower() == "true"
+    # Get embedding_send_dim from centralized configuration
+    embedding_send_dim = args.embedding_send_dim
 
     # Check if the function signature has embedding_dim parameter
     # Note: Since optimized_embedding_func is an async function, inspect its signature