diff --git a/capsulflask/shared.py b/capsulflask/shared.py
index d775b6b..14ba9b0 100644
--- a/capsulflask/shared.py
+++ b/capsulflask/shared.py
@@ -55,4 +55,8 @@ def authorized_as_hub(headers):
   return False
 
 def my_exec_info_message(exec_info):
-  return f"{exec_info[0].__module__}.{exec_info[0].__name__}: {exec_info[1]} at line {traceback.format_tb(exec_info[2])}"
\ No newline at end of file
+  traceback_result = traceback.format_tb(exec_info[2])
+  if isinstance(traceback_result, list) {
+    traceback_result = "\n".join(traceback_result)
+  }
+  return f"{exec_info[0].__module__}.{exec_info[0].__name__}: {exec_info[1]}: {traceback_result}"
\ No newline at end of file