diff --git a/tests/bluetooth/tester/prj.conf b/tests/bluetooth/tester/prj.conf
index e1599f6f1f2..ae41dd8f9b2 100644
--- a/tests/bluetooth/tester/prj.conf
+++ b/tests/bluetooth/tester/prj.conf
@@ -45,6 +45,7 @@ CONFIG_BT_MESH_LPN_POLL_TIMEOUT=100
 CONFIG_BT_MESH_PROVISIONER=y
 CONFIG_BT_MESH_CDB_NODE_COUNT=3
 CONFIG_BT_MESH_PROV_OOB_PUBLIC_KEY=y
+CONFIG_BT_MESH_TX_SEG_RETRANS_COUNT=5
 
 CONFIG_BT_TINYCRYPT_ECC=y
 CONFIG_BT_TESTING=y