diff --git a/tests/gtest_globals.h b/tests/gtest_globals.h
index fab2a39..019849d 100644
--- a/tests/gtest_globals.h
+++ b/tests/gtest_globals.h
@@ -21,6 +21,6 @@
 
 constexpr const char* kPrebuiltElfDir = "prebuilt-elf-files";
 
-extern const std::string g_testlib_root;
+const std::string& get_testlib_root();
 
 #endif  // _BIONIC_TESTS_GTEST_GLOBALS_H