diff --git a/.changeset/famous-oranges-shout.md b/.changeset/famous-oranges-shout.md
new file mode 100644
index 0000000000000..7622945996eb3
--- /dev/null
+++ b/.changeset/famous-oranges-shout.md
@@ -0,0 +1,6 @@
+---
+"gradio": minor
+"gradio_client": minor
+---
+
+feat:fix small bug when join src & api_prefix
diff --git a/client/python/gradio_client/client.py b/client/python/gradio_client/client.py
index 585c3bdd2d6bd..49669d97dabca 100644
--- a/client/python/gradio_client/client.py
+++ b/client/python/gradio_client/client.py
@@ -156,8 +156,9 @@ def __init__(
         )
         api_prefix: str = self.config.get("api_prefix", "")
         self.api_prefix = api_prefix.lstrip("/") + "/"
-        self.src_prefixed = urllib.parse.urljoin(self.src, api_prefix).rstrip("/") + "/"
-
+        self.src_prefixed = (
+            urllib.parse.urljoin(self.src, self.api_prefix).rstrip("/") + "/"
+        )
         self.api_url = urllib.parse.urljoin(self.src_prefixed, utils.API_URL)
         self.sse_url = urllib.parse.urljoin(
             self.src_prefixed,