diff --git a/Readme.md b/Readme.md
index dda026aef617223654e6f0e7a14296cb5aa52d47..dab7b6c05033b23ee50f989a18b104cce400094f 100644
--- a/Readme.md
+++ b/Readme.md
@@ -67,8 +67,8 @@ setup(
 ## Usage
 
 ```python
-from pyTiming.pyTiming import timer
-timer = timer() # starts measuring time
+from pyTiming import pyTiming
+timer = pyTiming.timer() # starts measuring time
 . . .
 
 timer.start_step('step1')
@@ -89,3 +89,5 @@ timer.end() # end all measurements
 
 print(timer.get_analysis())
 ```
+
+**Warning** do not call a step `'main'` as this name is used for the global step