diff --git a/sw/device/tests/autogen/BUILD b/sw/device/tests/autogen/BUILD
index 8b44b36c7bc00b..3c7f6609c56f3f 100644
--- a/sw/device/tests/autogen/BUILD
+++ b/sw/device/tests/autogen/BUILD
@@ -86,6 +86,7 @@ opentitan_test(
         ],
         exec_env = {
             "//hw/top_earlgrey:fpga_cw310_sival": None,
+            "//hw/top_earlgrey:fpga_cw310_sival_rom_ext": None,
             "//hw/top_earlgrey:fpga_cw310_test_rom": None,
             "//hw/top_earlgrey:silicon_creator": None,
             "//hw/top_earlgrey:silicon_owner_sival_rom_ext": None,
diff --git a/util/topgen/templates/BUILD.tpl b/util/topgen/templates/BUILD.tpl
index e6b39ff609134b..e7e8cafb875f22 100644
--- a/util/topgen/templates/BUILD.tpl
+++ b/util/topgen/templates/BUILD.tpl
@@ -65,6 +65,7 @@ opentitan_test(
         ],
         exec_env = {
             "//hw/top_earlgrey:fpga_cw310_sival": None,
+            "//hw/top_earlgrey:fpga_cw310_sival_rom_ext": None,
             "//hw/top_earlgrey:fpga_cw310_test_rom": None,
             "//hw/top_earlgrey:silicon_creator": None,
             "//hw/top_earlgrey:silicon_owner_sival_rom_ext": None,