diff --git a/llama_stack/providers/remote/vector_io/milvus/milvus.py b/llama_stack/providers/remote/vector_io/milvus/milvus.py
index 3130ae656..25fe237c0 100644
--- a/llama_stack/providers/remote/vector_io/milvus/milvus.py
+++ b/llama_stack/providers/remote/vector_io/milvus/milvus.py
@@ -57,7 +57,7 @@ class MilvusIndex(EmbeddingIndex):
         self, client: MilvusClient, collection_name: str, consistency_level="Strong", kvstore: KVStore | None = None
     ):
         self.client = client
-        self.collection_name = collection_name.replace("-", "_")
+        self.collection_name = sanitize_collection_name(collection_name)
         self.consistency_level = consistency_level
         self.kvstore = kvstore