diff --git a/app/routes.py b/app/routes.py
index d64bd9f393a3a8248f7447eae7a1057bbfb88548..a5048d335229d785324a697515eb3cb89fe02f06 100644
--- a/app/routes.py
+++ b/app/routes.py
@@ -44,7 +44,8 @@ def rttc():
         plots=RTTC_PLOTS,
         info=
         "Cable Round Trip Time calculated from realtime data provided by the "
-        "Detector Manager.\n"
+        "Detector Manager. The red lines shows the median and the STD "
+        "calculated. from the last 24 hours. "
         "RTTC = Cable_RTT - (TX_Slave + RX_Slave + TX_Master + RX_Master)")