diff --git a/core/libs/prx/libc/CMakeLists.txt b/core/libs/prx/libc/CMakeLists.txt
index f40f189ab..c59665ab8 100644
--- a/core/libs/prx/libc/CMakeLists.txt
+++ b/core/libs/prx/libc/CMakeLists.txt
@@ -286,6 +286,13 @@ target_include_directories(guest_locale_tests PRIVATE ${LIBS_INCLUDE_DIR})
 set_target_properties(guest_locale_tests PROPERTIES CXX_EXTENSIONS OFF)
 target_link_libraries(guest_locale_tests PRIVATE libc)
 configure_windows_unwind(guest_locale_tests)
+if(BUILD_TESTING)
+    set_target_properties(guest_locale_tests PROPERTIES EXCLUDE_FROM_ALL FALSE)
+    add_test(NAME guest_locale COMMAND guest_locale_tests)
+    if(WIN32)
+        set_tests_properties(guest_locale PROPERTIES ENVIRONMENT_MODIFICATION "PATH=path_list_prepend:$<TARGET_FILE_DIR:libc>")
+    endif()
+endif()
 
 if(MINGW)
     foreach(runtimeLinkFlag IN ITEMS -static-libgcc -static-libstdc++ -static)
diff --git a/core/libs/tests/GuestLocale.cpp b/core/libs/tests/GuestLocale.cpp
index dc1635dd9..632670181 100644
--- a/core/libs/tests/GuestLocale.cpp
+++ b/core/libs/tests/GuestLocale.cpp
@@ -57,7 +57,7 @@ static void CheckGuestCalls() {
     Require(locale->base.references == initial + 1);
     Require(release(&locale->base) == nullptr);
     Require(locale->base.references == initial);
-    RequireException([&] { release(&locale->base); });
+    Require(release(&locale->base) == nullptr && locale->base.references == initial);
     RequireException([&] { retain(nullptr); });
     RequireException([&] { locale->base.vtable->deleteObject(&locale->base); });
     Require(locale->base.references == initial);