diff --git a/src/timeline.h b/src/timeline.h
index 0b8852bf3f1f7759a2b966a9e21de152f8432e23..25605614be2aa079e96176cb6f0a221c828f5e3d 100644
--- a/src/timeline.h
+++ b/src/timeline.h
@@ -47,9 +47,6 @@ typedef int8_t timebin_t;
 /*! Fictitious time-bin for particles not awaken */
 #define time_bin_not_awake (-num_time_bins)
 
-/*! Fictitious time-bin for particles woken up */
-//#define time_bin_awake (-(num_time_bins + 1))
-
 /* Maximal difference in time-bins between neighbouring particles */
 #define time_bin_neighbour_max_delta_bin 2