diff --git a/e2e/test/BUILD.bazel b/e2e/test/BUILD.bazel
index 161fc7b0f5c2db9d9700099d00553bb4ee223fd0..f107770dd2a8876206e8656400476060a021c28d 100644
--- a/e2e/test/BUILD.bazel
+++ b/e2e/test/BUILD.bazel
@@ -1,3 +1,4 @@
+load("@bazel_skylib//rules:write_file.bzl", "write_file")
 load("@rules_labgrid//labgrid/test:defs.bzl", "labgrid_test")
 load("@rules_python//python:defs.bzl", "py_binary")
 
@@ -11,6 +12,30 @@ py_binary(
 
 labgrid_test(
     name = "test",
+    size = "small",
     src = ":inner",
     platform = "@rules_labgrid//labgrid/platform:localhost",
 )
+
+write_file(
+    name = "greeting",
+    out = "greeting.py",
+    content = [
+        "from os import environ",
+        "assert environ.get('GREETING') == 'hello'",
+    ],
+)
+
+py_binary(
+    name = "inner-with-env",
+    srcs = ["greeting.py"],
+    env = {"GREETING": "hello"},
+    main = "greeting.py",
+)
+
+labgrid_test(
+    name = "forward-env-test",
+    size = "small",
+    src = ":inner-with-env",
+    platform = "@rules_labgrid//labgrid/platform:localhost",
+)
diff --git a/labgrid/test/rule.bzl b/labgrid/test/rule.bzl
index c14f842fd09807baee21a43bbd872cc77e5540a9..e0f899427f685a9a596fd76b2e378817f5b90f15 100644
--- a/labgrid/test/rule.bzl
+++ b/labgrid/test/rule.bzl
@@ -39,6 +39,11 @@ def _runfile(label, file):
         return path.removeprefix("../")
     return "{}/{}".format(label.workspace_name or "_main", path)
 
+def _run_env(target):
+    if RunEnvironmentInfo in target:
+        return target[RunEnvironmentInfo].environment
+    return {}
+
 def _env(pair):
     key, value = pair
     return ["--env", "{}={}".format(key, value)]
@@ -48,7 +53,7 @@ def _get(pair):
     return ["--get", "{}:{}".format(key, value)]
 
 def implementation(ctx):
-    env = {
+    env = _run_env(ctx.attr.src) | {
         "XML_OUTPUT_FILE": "results.xml",
         "BAZEL_TEST": "1",
     }