diff --git a/common/prefix.py b/common/prefix.py
index 207f8477d..b19ce1472 100644
--- a/common/prefix.py
+++ b/common/prefix.py
@@ -11,7 +11,7 @@ from openpilot.system.hardware.hw import DEFAULT_DOWNLOAD_CACHE_ROOT
 class OpenpilotPrefix:
   def __init__(self, prefix: str = None, create_dirs_on_enter: bool = True, clean_dirs_on_exit: bool = True, shared_download_cache: bool = False):
     self.prefix = prefix if prefix else str(uuid.uuid4().hex[0:15])
-    self.msgq_path = os.path.join(Paths.shm_path(), self.prefix)
+    self.msgq_path = os.path.join(Paths.shm_path(), "msgq_" + self.prefix)
     self.create_dirs_on_enter = create_dirs_on_enter
     self.clean_dirs_on_exit = clean_dirs_on_exit
     self.shared_download_cache = shared_download_cache
diff --git a/msgq_repo b/msgq_repo
index 345878d91..6abe47bc9 160000
--- a/msgq_repo
+++ b/msgq_repo
@@ -1 +1 @@
-Subproject commit 345878d9141d0470d1a96f8fb5e59efb61dd5cf9
+Subproject commit 6abe47bc98b83338b6ea04a87a6b2b5c65d09630