diff --git a/src/hb.hh b/src/hb.hh
index a2cbba934..0b1be1782 100644
--- a/src/hb.hh
+++ b/src/hb.hh
@@ -62,6 +62,7 @@
 #pragma GCC diagnostic error   "-Wold-style-definition"
 #pragma GCC diagnostic error   "-Wpointer-arith"
 #pragma GCC diagnostic error   "-Wredundant-decls"
+#pragma GCC diagnostic error   "-Wreorder"
 #pragma GCC diagnostic error   "-Wstrict-prototypes"
 #pragma GCC diagnostic error   "-Wstring-conversion"
 #pragma GCC diagnostic error   "-Wswitch-enum"