diff --git a/tests/genrule_sandbox_test.py b/tests/genrule_sandbox_test.py
index 0cebc2a..874859a 100755
--- a/tests/genrule_sandbox_test.py
+++ b/tests/genrule_sandbox_test.py
@@ -61,7 +61,8 @@
   module_path = os.path.join(out_dir, "soong", "module-actions.json")
 
   if not os.path.exists(module_path):
-    _build_with_soong(["json-module-graph"], target_product)
+    # Use GENRULE_SANDBOXING=false so that we don't cause re-analysis later when we do the no-sandboxing build
+    _build_with_soong(["json-module-graph"], target_product, extra_env={"GENRULE_SANDBOXING": "false"})
 
   with open(module_path) as f:
     action_graph = json.load(f)
@@ -131,7 +132,7 @@
   all_outs = list(set.union(*module_to_outs.values()))
 
   print("building without sandboxing...")
-  _build_with_soong(all_outs, args.target_product)
+  _build_with_soong(all_outs, args.target_product, extra_env={"GENRULE_SANDBOXING": "false"})
   with tempfile.TemporaryDirectory() as tempdir:
     for f in all_outs:
       subprocess.check_call(["cp", "--parents", f, tempdir])