diff --git a/extras/hs-test/vars b/extras/hs-test/vars
new file mode 100755
index 0000000..1717b11
--- /dev/null
+++ b/extras/hs-test/vars
@@ -0,0 +1,4 @@
+export VPP_WS=../../
+
+export HST_LDPRELOAD=${VPP_WS}/build-root/build-vpp_debug-native/vpp/lib/x86_64-linux-gnu/libvcl_ldpreload.so
+export PATH=${VPP_WS}/build-root/build-vpp_debug-native/vpp/bin:$PATH