diff --git a/tests/test_setting_env.cpp b/tests/test_setting_env.cpp
index ac50d4d..9e3150c 100644
--- a/tests/test_setting_env.cpp
+++ b/tests/test_setting_env.cpp
@@ -439,4 +439,6 @@ TEST(test_layer_setting_env, vkuGetLayerSettingValues_String) {
     EXPECT_EQ(2, value_count);
 
     vkuDestroyLayerSettingSet(layerSettingSet, nullptr);
+
+    SetEnv("VK_LUNARG_TEST_MY_SETTING=");
 }