diff --git a/andes/variables/dae.py b/andes/variables/dae.py
index 8db2c6323..44161ad28 100644
--- a/andes/variables/dae.py
+++ b/andes/variables/dae.py
@@ -472,7 +472,6 @@ def set_t(self, t):
         """
         Helper function for setting time in-place.
         """
-        # use in-place assignment
         self.t[...] = np.array(t, dtype=float)
 
     def get_size(self, name):