diff --git a/app/routes.py b/app/routes.py
index a5048d335229d785324a697515eb3cb89fe02f06..402929896b9b0e12e02f8464048ba748e6decb5c 100644
--- a/app/routes.py
+++ b/app/routes.py
@@ -45,7 +45,7 @@ def rttc():
         info=
         "Cable Round Trip Time calculated from realtime data provided by the "
         "Detector Manager. The red lines shows the median and the STD "
-        "calculated. from the last 24 hours. "
+        "from the past 24 hours. "
         "RTTC = Cable_RTT - (TX_Slave + RX_Slave + TX_Master + RX_Master)")