diff --git a/src/hb.hh b/src/hb.hh
index 8a4aaa0fe..57fd8a990 100644
--- a/src/hb.hh
+++ b/src/hb.hh
@@ -42,6 +42,7 @@
 //#pragma GCC diagnostic warning "-Weverything"
 /* Error */
 #pragma GCC diagnostic error   "-Wcast-align"
+#pragma GCC diagnostic error   "-Wclass-memaccess"
 #pragma GCC diagnostic error   "-Wformat-security"
 #pragma GCC diagnostic error   "-Winit-self"
 #pragma GCC diagnostic error   "-Wimplicit-function-declaration"