diff --git a/api/chalicelib/core/sessions_mobs.py b/api/chalicelib/core/sessions_mobs.py
index 9e69e59fd..cd27d1abd 100644
--- a/api/chalicelib/core/sessions_mobs.py
+++ b/api/chalicelib/core/sessions_mobs.py
@@ -20,7 +20,7 @@ def __get_ios_video_keys(project_id, session_id):
         "projectId": project_id
     }
     return [
-        config("SESSION_IOS_VIDEO_PATTERN", default="replay.mp4") % params,
+        config("SESSION_IOS_VIDEO_PATTERN") % params,
     ]
 
 
diff --git a/api/env.dev b/api/env.dev
index 9f193c13a..eed9fb904 100644
--- a/api/env.dev
+++ b/api/env.dev
@@ -63,4 +63,5 @@ docs_url=/docs
 root_path=''
 docs_url=/docs
 IOS_BUCKET=mobs
-IOS_VIDEO_BUCKET=mobs
\ No newline at end of file
+IOS_VIDEO_BUCKET=mobs
+SESSION_IOS_VIDEO_PATTERN=%(sessionId)s/replay.mp4
\ No newline at end of file
diff --git a/ee/api/env.dev b/ee/api/env.dev
index 7ff10ed2c..c2bb06ce2 100644
--- a/ee/api/env.dev
+++ b/ee/api/env.dev
@@ -80,4 +80,5 @@ docs_url=/docs
 root_path=''
 docs_url=/docs
 IOS_BUCKET=mobs
-IOS_VIDEO_BUCKET=mobs
\ No newline at end of file
+IOS_VIDEO_BUCKET=mobs
+SESSION_IOS_VIDEO_PATTERN=%(sessionId)s/replay.mp4
\ No newline at end of file