diff --git a/src/hb.hh b/src/hb.hh
index 29501e71e..802a5a0fe 100644
--- a/src/hb.hh
+++ b/src/hb.hh
@@ -371,7 +371,7 @@ static_assert ((sizeof (hb_var_int_t) == 4), "");
 
 #else /* __cpluspplus >= 201103L */
 
-#define HB_NO_COPY_ASSIGN(TypeName)
+#define HB_NO_COPY_ASSIGN(TypeName) static_assert (true, "")
 #define HB_NO_COPY_ASSIGN_TEMPLATE2(TypeName, T1, T2) static_assert (true, "")
 #define HB_NO_CREATE_COPY_ASSIGN(TypeName) static_assert (true, "")
 #define HB_NO_CREATE_COPY_ASSIGN_TEMPLATE(TypeName, T) static_assert (true, "")