diff --git a/tools/python/jwutils/log.py b/tools/python/jwutils/log.py
index 56990a7..f7ad37a 100644
--- a/tools/python/jwutils/log.py
+++ b/tools/python/jwutils/log.py
@@ -123,8 +123,9 @@ def get_caller_pos(up: int = 1, kwargs: Optional[dict[str, Any]] = None) -> Tupl
         del kwargs['caller']
         return r
     caller = inspect.stack()[up+1]
-    mod = inspect.getmodule(caller[0]).__name__
-    return (mod, basename(caller.filename), caller.lineno)
+    mod = inspect.getmodule(caller[0])
+    mod_name = '' if mod is None else mod.__name__
+    return (mod_name, basename(caller.filename), caller.lineno)
 
 def slog_m(prio: int, *args, **kwargs) -> None: # export
     if prio > _level: