diff --git a/exercises/205_sustained_link/platformio.ini b/exercises/205_sustained_link/platformio.ini
index cd1a30e..fc376ce 100644
--- a/exercises/205_sustained_link/platformio.ini
+++ b/exercises/205_sustained_link/platformio.ini
@@ -50,6 +50,7 @@ build_flags =
   -D LORA_SYNC_WORD=0x12
   -D LORA_TX_POWER_DBM=14
   -D USTORE_MAX_VALUE_LEN=1200
+  -D RNS_SUPPRESS_TRANSPORT_STATS=1
   -D SIM_PHY_ENVELOPE=1
   -D SIM_PHY_BLOCK_BOB_CY=0
   -D ANNOUNCEMENT_2=300