diff --git a/src/hb-private.hh b/src/hb-private.hh
index 05f0adbe5..74045d7e0 100644
--- a/src/hb-private.hh
+++ b/src/hb-private.hh
@@ -549,7 +549,7 @@ _hb_ceil_to_4 (unsigned int v)
 
 /* Global nul-content Null pool.  Enlarge as necessary. */
 
-#define HB_NULL_POOL_SIZE 384
+#define HB_NULL_POOL_SIZE 264
 static_assert (HB_NULL_POOL_SIZE % sizeof (void *) == 0, "Align HB_NULL_POOL_SIZE.");
 
 #ifdef HB_NO_VISIBILITY
@@ -1153,7 +1153,7 @@ struct hb_vector_size_t
   union {
     elt_t v[byte_size / sizeof (elt_t)];
 #if HB_VECTOR_SIZE
-    typedef unsigned long vec_t __attribute__((vector_size (HB_VECTOR_SIZE)));
+    typedef unsigned long vec_t __attribute__((vector_size (HB_VECTOR_SIZE / 8)));
     vec_t vec[byte_size / sizeof (vec_t)];
 #endif
   } u;
diff --git a/src/hb-set-private.hh b/src/hb-set-private.hh
index 323c6f4ba..716881576 100644
--- a/src/hb-set-private.hh
+++ b/src/hb-set-private.hh
@@ -165,7 +165,6 @@ struct hb_set_t
     static inline unsigned int elt_get_max (const elt_t &elt) { return _hb_bit_storage (elt) - 1; }
 
     typedef hb_vector_size_t<elt_t, PAGE_BITS / 8> vector_t;
-    vector_t v;
 
     static const unsigned int ELT_BITS = sizeof (elt_t) * 8;
     static const unsigned int ELT_MASK = ELT_BITS - 1;
@@ -176,6 +175,8 @@ struct hb_set_t
     elt_t &elt (hb_codepoint_t g) { return v[(g & MASK) / ELT_BITS]; }
     elt_t const &elt (hb_codepoint_t g) const { return v[(g & MASK) / ELT_BITS]; }
     elt_t mask (hb_codepoint_t g) const { return elt_t (1) << (g & ELT_MASK); }
+
+    vector_t v;
   };
   static_assert (page_t::PAGE_BITS == sizeof (page_t) * 8, "");