diff --git a/lib/tfw/linear_fsm.py b/lib/tfw/linear_fsm.py
index 2725ff8..574f5c9 100644
--- a/lib/tfw/linear_fsm.py
+++ b/lib/tfw/linear_fsm.py
@@ -7,6 +7,6 @@ from .fsm_base import FSMBase
 class LinearFSM(FSMBase):
     def __init__(self, number_of_steps):
         self.states = list(map(str, range(number_of_steps)))
-        self.transitions = [{'trigger': 'step', 'source': index, 'dest': str(int(index)+1)}
+        self.transitions = [{'trigger': 'step_{}'.format(int(index)+1), 'source': index, 'dest': str(int(index)+1)}
                             for index in self.states[:-1]]
         super(LinearFSM, self).__init__()