diff --git a/antlir/bzl/image_cpp_unittest.bzl b/antlir/bzl/image_cpp_unittest.bzl
index bd19498a9b0..4b78c4e6c4a 100644
--- a/antlir/bzl/image_cpp_unittest.bzl
+++ b/antlir/bzl/image_cpp_unittest.bzl
@@ -30,6 +30,7 @@ def image_cpp_unittest(
         boot = boot,
         run_as_user = run_as_user,
         boot_requires_units = ["dbus.socket"] if (boot and container_opts and container_opts.boot_await_dbus) else [],
+        hostname = hostname,
         fake_buck1 = struct(
             fn = antlir2_shim.fake_buck1_test,
             name = name,
diff --git a/antlir/bzl/image_python_unittest.bzl b/antlir/bzl/image_python_unittest.bzl
index 4a356e23e9b..bd0289e7e2e 100644
--- a/antlir/bzl/image_python_unittest.bzl
+++ b/antlir/bzl/image_python_unittest.bzl
@@ -43,6 +43,7 @@ def image_python_unittest(
         boot = boot,
         run_as_user = run_as_user,
         boot_requires_units = ["dbus.socket"] if (boot and container_opts and container_opts.boot_await_dbus) else [],
+        hostname = hostname,
         fake_buck1 = struct(
             fn = antlir2_shim.fake_buck1_test,
             name = name,
diff --git a/antlir/bzl/image_rust_unittest.bzl b/antlir/bzl/image_rust_unittest.bzl
index 8d3eb86905b..197af404c84 100644
--- a/antlir/bzl/image_rust_unittest.bzl
+++ b/antlir/bzl/image_rust_unittest.bzl
@@ -29,6 +29,7 @@ def image_rust_unittest(
         run_as_user = run_as_user,
         boot_requires_units = ["dbus.socket"] if (boot and container_opts and container_opts.boot_await_dbus) else [],
         crate = rust_unittest_kwargs.pop("crate", name + "_unittest"),
+        hostname = hostname,
         fake_buck1 = struct(
             fn = antlir2_shim.fake_buck1_test,
             name = name,