diff --git a/sw/device/tests/sim_dv/BUILD b/sw/device/tests/sim_dv/BUILD
index 9bbed52..f52b107 100644
--- a/sw/device/tests/sim_dv/BUILD
+++ b/sw/device/tests/sim_dv/BUILD
@@ -5,6 +5,10 @@
 load("//rules:opentitan.bzl", "OPENTITAN_CPU")
 load("//rules:opentitan_test.bzl", "opentitan_functest")
 
+# Export source code files so we can build DV test artifacts in matcha airgapped
+# environment.
+exports_files(glob(["*.c"]))
+
 opentitan_functest(
     name = "uart_tx_rx_test",
     srcs = ["uart_tx_rx_test.c"],