diff --git a/linker/linker.h b/linker/linker.h
index 3e851da..e1775fb 100644
--- a/linker/linker.h
+++ b/linker/linker.h
@@ -181,3 +181,9 @@
 int get_application_target_sdk_version();
 ElfW(Versym) find_verdef_version_index(const soinfo* si, const version_info* vi);
 bool validate_verdef_section(const soinfo* si);
+
+struct platform_properties {
+#if defined(__aarch64__)
+  bool bti_supported = false;
+#endif
+};