diff --git a/tests/unit_tests/conversion/launcher/test_run_conversion.py b/tests/unit_tests/conversion/launcher/test_run_conversion.py
index 367e81e94f..d665a1ec6a 100644
--- a/tests/unit_tests/conversion/launcher/test_run_conversion.py
+++ b/tests/unit_tests/conversion/launcher/test_run_conversion.py
@@ -31,9 +31,10 @@
 def _load_run_conversion_module():
     cpu_backend = types.ModuleType("cpu_backend")
     gpu_backend = types.ModuleType("gpu_backend")
-    previous_modules = {name: sys.modules.get(name) for name in ("cpu_backend", "gpu_backend", "arguments")}
+    previous_modules = {name: sys.modules.get(name) for name in ("cpu_backend", "gpu_backend", "arguments", "utils")}
     sys.modules["cpu_backend"] = cpu_backend
     sys.modules["gpu_backend"] = gpu_backend
+    sys.modules.pop("utils", None)
     sys.path.insert(0, str(SCRIPT_DIR))
     try:
         spec = importlib.util.spec_from_file_location(
@@ -52,6 +53,15 @@ def _load_run_conversion_module():
     return module, cpu_backend, gpu_backend
 
 
+def test_loader_restores_preexisting_utils_module(monkeypatch):
+    preexisting_utils = types.ModuleType("utils")
+    monkeypatch.setitem(sys.modules, "utils", preexisting_utils)
+
+    _load_run_conversion_module()
+
+    assert sys.modules["utils"] is preexisting_utils
+
+
 def test_cpu_import_dispatches_to_cpu_backend():
     module, cpu_backend, _ = _load_run_conversion_module()
     calls = []