diff --git a/tools/python/jwutils/log.py b/tools/python/jwutils/log.py
index df40cd2..4f550e6 100644
--- a/tools/python/jwutils/log.py
+++ b/tools/python/jwutils/log.py
@@ -75,9 +75,8 @@ _prio_colors         = {
 }
 
 def get_caller_pos(up = 1):
-    assert(up == 1) # TODO: implement this
-    caller_frame = inspect.currentframe().f_back.f_back
-    return (basename(caller_frame.f_code.co_filename), caller_frame.f_lineno)
+    caller = inspect.stack()[up+1]
+    return (basename(caller.filename), caller.lineno)
 
 def slog_m(prio, *args, **kwargs): # export
     if prio > _level: