diff --git a/linker/linker_logger.h b/linker/linker_logger.h
index f37b974..3e53f74 100644
--- a/linker/linker_logger.h
+++ b/linker/linker_logger.h
@@ -58,4 +58,8 @@
 extern LinkerLogger g_linker_logger;
 extern char** g_argv;
 
+// If the system property debug.ld.greylist_disabled is true, we'll not use the greylist
+// regardless of API level.
+extern bool g_greylist_disabled;
+
 #endif /* _LINKER_LOGGER_H_ */