diff --git a/messaging/__init__.py b/messaging/__init__.py
index b6e0199b6ee6cf..7a0d4936b3e653 100644
--- a/messaging/__init__.py
+++ b/messaging/__init__.py
@@ -14,6 +14,7 @@
 except ImportError:
   import time
   sec_since_boot = time.time
+  print("Warning, using python time.time() instead of faster sec_since_boot")
 
 context = Context()