diff --git a/targets/PROJECTS/GENERIC-LTE-EPC/CONF/rcc.band7.tm1.if5.25PRB.conf b/targets/PROJECTS/GENERIC-LTE-EPC/CONF/rcc.band7.tm1.if5.25PRB.conf
index e8e0e6dadb..7541fa1ee1 100644
--- a/targets/PROJECTS/GENERIC-LTE-EPC/CONF/rcc.band7.tm1.if5.25PRB.conf
+++ b/targets/PROJECTS/GENERIC-LTE-EPC/CONF/rcc.band7.tm1.if5.25PRB.conf
@@ -150,7 +150,7 @@ eNBs =
         ENB_INTERFACE_NAME_FOR_S1_MME            = "lo";
         ENB_IPV4_ADDRESS_FOR_S1_MME              = "127.0.0.2/24";
         ENB_INTERFACE_NAME_FOR_S1U               = "lo";
-        ENB_IPV4_ADDRESS_FOR_S1U                 = "127.0.0.4/24";
+        ENB_IPV4_ADDRESS_FOR_S1U                 = "127.0.0.5/24";
         ENB_PORT_FOR_S1U                         = 2152; # Spec 2152
     };