diff --git a/sycl/unittests/SYCL2020/GetNativeOpenCL.cpp b/sycl/unittests/SYCL2020/GetNativeOpenCL.cpp
index 151c56d8e9a8a..343cb522faa6d 100644
--- a/sycl/unittests/SYCL2020/GetNativeOpenCL.cpp
+++ b/sycl/unittests/SYCL2020/GetNativeOpenCL.cpp
@@ -61,6 +61,13 @@ pi_result redefinedEventGetInfo(pi_event event, pi_event_info param_name,
   return PI_SUCCESS;
 }
 
+static pi_result redefinedUSMEnqueueMemset(pi_queue, void *, pi_int32, size_t,
+                                           pi_uint32, const pi_event *,
+                                           pi_event *event) {
+  *event = reinterpret_cast<pi_event>(new int{});
+  return PI_SUCCESS;
+}
+
 TEST(GetNative, GetNativeHandle) {
   platform Plt{default_selector()};
   if (Plt.get_backend() != backend::opencl) {
@@ -83,6 +90,8 @@ TEST(GetNative, GetNativeHandle) {
   Mock.redefine<detail::PiApiKind::piDeviceRetain>(redefinedDeviceRetain);
   Mock.redefine<detail::PiApiKind::piProgramRetain>(redefinedProgramRetain);
   Mock.redefine<detail::PiApiKind::piEventRetain>(redefinedEventRetain);
+  Mock.redefine<detail::PiApiKind::piextUSMEnqueueMemset>(
+      redefinedUSMEnqueueMemset);
 
   default_selector Selector;
   context Context(Plt);
diff --git a/sycl/unittests/helpers/CommonRedefinitions.hpp b/sycl/unittests/helpers/CommonRedefinitions.hpp
index 274425eb6a6ea..60a35f9b71404 100644
--- a/sycl/unittests/helpers/CommonRedefinitions.hpp
+++ b/sycl/unittests/helpers/CommonRedefinitions.hpp
@@ -106,12 +106,15 @@ inline pi_result redefinedEventsWaitCommon(pi_uint32 num_events,
 }
 
 inline pi_result redefinedEventReleaseCommon(pi_event event) {
+  if (event != nullptr)
+    delete reinterpret_cast<int *>(event);
   return PI_SUCCESS;
 }
 
 inline pi_result redefinedEnqueueKernelLaunchCommon(
     pi_queue, pi_kernel, pi_uint32, const size_t *, const size_t *,
-    const size_t *, pi_uint32, const pi_event *, pi_event *) {
+    const size_t *, pi_uint32, const pi_event *, pi_event *event) {
+  *event = reinterpret_cast<pi_event>(new int{});
   return PI_SUCCESS;
 }