diff --git a/tools/python/jwutils/log.py b/tools/python/jwutils/log.py
index 4f550e6..07fea2e 100644
--- a/tools/python/jwutils/log.py
+++ b/tools/python/jwutils/log.py
@@ -88,7 +88,11 @@ def slog_m(prio, *args, **kwargs): # export
                 margs += '\n'.join([str(elem) for elem in a])
                 continue
             margs += ' ' + str(a)
-    caller = get_caller_pos(1)
+    if 'caller' not in kwargs:
+        caller = get_caller_pos(1)
+    else:
+        caller = kwargs['caller']
+        del kwargs['caller']
     for line in margs[1:].split('\n'):
         slog(prio, line, **kwargs, caller=caller)