diff --git a/.travis/script.sh b/.travis/script.sh
index f53d08ebc..e4717bd4a 100755
--- a/.travis/script.sh
+++ b/.travis/script.sh
@@ -154,7 +154,7 @@ EOF
     git checkout -- . || die
     git clean -xfd || die
     ./bootstrap || die
-    BORDER_ROUTER=1 COAP=1 COMMISSIONER=1 DHCP6_CLIENT=1 DHCP6_SERVER=1 DNS_CLIENT=1 FULL_LOGS=1 JOINER=1 LINK_RAW=1 MAC_FILTER=1 MTD_NETDIAG=1 SERVICE=1 TMF_PROXY=1 make -f examples/Makefile-nrf52840 || die
+    BORDER_ROUTER=1 COAP=1 COMMISSIONER=1 DHCP6_CLIENT=1 DHCP6_SERVER=1 DNS_CLIENT=1 FULL_LOGS=1 JOINER=1 LINK_RAW=1 MAC_FILTER=1 MTD_NETDIAG=1 SERVICE=1 UDP_PROXY=1 make -f examples/Makefile-nrf52840 || die
     arm-none-eabi-size  output/nrf52840/bin/ot-cli-ftd || die
     arm-none-eabi-size  output/nrf52840/bin/ot-cli-mtd || die
     arm-none-eabi-size  output/nrf52840/bin/ot-ncp-ftd || die
@@ -232,7 +232,7 @@ EOF
     git checkout -- . || die
     git clean -xfd || die
     ./bootstrap || die
-    BORDER_ROUTER=1 COAP=1 COMMISSIONER=1 DHCP6_CLIENT=1 DHCP6_SERVER=1 DNS_CLIENT=1 FULL_LOGS=1 JOINER=1 MAC_FILTER=1 MTD_NETDIAG=1 SERVICE=1 TMF_PROXY=1 make -f examples/Makefile-nrf52840 || die
+    BORDER_ROUTER=1 COAP=1 COMMISSIONER=1 DHCP6_CLIENT=1 DHCP6_SERVER=1 DNS_CLIENT=1 FULL_LOGS=1 JOINER=1 MAC_FILTER=1 MTD_NETDIAG=1 SERVICE=1 UDP_PROXY=1 make -f examples/Makefile-nrf52840 || die
     arm-none-eabi-size  output/nrf52840/bin/ot-cli-ftd || die
     arm-none-eabi-size  output/nrf52840/bin/ot-cli-mtd || die
     arm-none-eabi-size  output/nrf52840/bin/ot-ncp-ftd || die
@@ -310,7 +310,7 @@ EOF
     git checkout -- . || die
     git clean -xfd || die
     ./bootstrap || die
-    BORDER_ROUTER=1 COAP=1 COMMISSIONER=1 DHCP6_CLIENT=1 DHCP6_SERVER=1 DNS_CLIENT=1 FULL_LOGS=1 JOINER=1 MAC_FILTER=1 MTD_NETDIAG=1 SERVICE=1 TMF_PROXY=1 make -f examples/Makefile-nrf52840 || die
+    BORDER_ROUTER=1 COAP=1 COMMISSIONER=1 DHCP6_CLIENT=1 DHCP6_SERVER=1 DNS_CLIENT=1 FULL_LOGS=1 JOINER=1 MAC_FILTER=1 MTD_NETDIAG=1 SERVICE=1 UDP_PROXY=1 make -f examples/Makefile-nrf52840 || die
     arm-none-eabi-size  output/nrf52840/bin/ot-cli-ftd || die
     arm-none-eabi-size  output/nrf52840/bin/ot-cli-mtd || die
     arm-none-eabi-size  output/nrf52840/bin/ot-ncp-ftd || die
@@ -399,7 +399,7 @@ EOF
     git checkout -- . || die
     git clean -xfd || die
     ./bootstrap || die
-    BORDER_ROUTER=1 COAP=1 COMMISSIONER=1 DHCP6_CLIENT=1 DHCP6_SERVER=1 DNS_CLIENT=1 FULL_LOGS=1 JOINER=1 MAC_FILTER=1 MTD_NETDIAG=1 SERVICE=1 TMF_PROXY=1 make -f examples/Makefile-nrf52840 || die
+    BORDER_ROUTER=1 COAP=1 COMMISSIONER=1 DHCP6_CLIENT=1 DHCP6_SERVER=1 DNS_CLIENT=1 FULL_LOGS=1 JOINER=1 MAC_FILTER=1 MTD_NETDIAG=1 SERVICE=1 UDP_PROXY=1 make -f examples/Makefile-nrf52840 || die
     arm-none-eabi-size  output/nrf52840/bin/ot-cli-ftd || die
     arm-none-eabi-size  output/nrf52840/bin/ot-cli-mtd || die
     arm-none-eabi-size  output/nrf52840/bin/ot-ncp-ftd || die