diff --git a/packages/dbgpt-ext/src/dbgpt_ext/storage/vector_store/chroma_store.py b/packages/dbgpt-ext/src/dbgpt_ext/storage/vector_store/chroma_store.py
index 1c175b81b..9bcf07f40 100644
--- a/packages/dbgpt-ext/src/dbgpt_ext/storage/vector_store/chroma_store.py
+++ b/packages/dbgpt-ext/src/dbgpt_ext/storage/vector_store/chroma_store.py
@@ -114,9 +114,7 @@ class ChromaStore(VectorStoreBase):
         except ImportError:
             raise ImportError("Please install chroma package first.")
         chroma_vector_config = vector_store_config.to_dict()
-        chroma_path = chroma_vector_config.get(
-            "persist_path", os.path.join(PILOT_PATH, "data")
-        )
+        chroma_path = chroma_vector_config.get("persist_path") or os.path.join(PILOT_PATH, "data")
         self.persist_dir = os.path.join(resolve_root_path(chroma_path) + "/chromadb")
         self.embeddings = embedding_fn
         if not self.embeddings: