diff --git a/.github/buildomat/jobs/build-and-test-helios.sh b/.github/buildomat/jobs/build-and-test-helios.sh
index d3d071cb3e..a0137eddde 100755
--- a/.github/buildomat/jobs/build-and-test-helios.sh
+++ b/.github/buildomat/jobs/build-and-test-helios.sh
@@ -6,7 +6,7 @@
 #: rust_toolchain = true
 #: output_rules = [
 #:	"%/work/*",
-#:	"%/var/tmp/omicron_tmp/*",
+#:	"%/var/tmp/omicron_tmp/**/*",
 #:	"!/var/tmp/omicron_tmp/crdb-base*",
 #:	"!/var/tmp/omicron_tmp/rustc*",
 #: ]
diff --git a/.github/buildomat/jobs/build-and-test-linux.sh b/.github/buildomat/jobs/build-and-test-linux.sh
index c4e99f0f2a..bc4de5cc1a 100755
--- a/.github/buildomat/jobs/build-and-test-linux.sh
+++ b/.github/buildomat/jobs/build-and-test-linux.sh
@@ -6,7 +6,7 @@
 #: rust_toolchain = true
 #: output_rules = [
 #:	"%/work/*",
-#:	"%/var/tmp/omicron_tmp/*",
+#:	"%/var/tmp/omicron_tmp/**/*",
 #:	"!/var/tmp/omicron_tmp/crdb-base*",
 #:	"!/var/tmp/omicron_tmp/rustc*",
 #: ]