diff --git a/script/test b/script/test
index 69e098d9b..56fc7d818 100755
--- a/script/test
+++ b/script/test
@@ -10,6 +10,8 @@ if [ "$EMULATOR" = 1 ]; then
     trap "kill %1" EXIT
 
     firmware/trezor.elf &
+    export TREZOR_PATH=udp:127.0.0.1:21324
 fi
 
-TREZOR_TRANSPORT_V1=1 "${PYTHON:-python}" -m pytest --pyarg trezorlib.tests.device_tests "$@"
+export TREZOR_TRANSPORT_V1=1
+"${PYTHON:-python}" -m pytest --pyarg trezorlib.tests.device_tests "$@"