diff --git a/changes/2391.fix.md b/changes/2391.fix.md
new file mode 100644
index 0000000000..0be650492d
--- /dev/null
+++ b/changes/2391.fix.md
@@ -0,0 +1 @@
+Fix wrong image name extraction logic
diff --git a/src/ai/backend/manager/api/session.py b/src/ai/backend/manager/api/session.py
index 9446381372..4ef7688223 100644
--- a/src/ai/backend/manager/api/session.py
+++ b/src/ai/backend/manager/api/session.py
@@ -1088,7 +1088,7 @@ async def _commit_and_upload(reporter: ProgressReporter) -> None:
         await reporter.update(message="Commit started")
         try:
             if "/" in base_image_ref.name:
-                new_name = base_image_ref.name.split("/", maxsplit=1)[1]
+                new_name = base_image_ref.name.split("/")[-1]
             else:
                 # for cases where project name is not specified (e.g. redis, nginx, ...)
                 new_name = base_image_ref.name