diff --git a/src/OT/Color/COLR/COLR.hh b/src/OT/Color/COLR/COLR.hh
index 1a33f3178..e12658bd2 100644
--- a/src/OT/Color/COLR/COLR.hh
+++ b/src/OT/Color/COLR/COLR.hh
@@ -2476,8 +2476,8 @@ struct COLR
      * after instancing */
     if (!subset_varstore (c, colr_prime)) return_trace (false);
 
-    ItemVarStoreInstancer instancer (varStore ? &(this+varStore) : nullptr,
-	                         varIdxMap ? &(this+varIdxMap) : nullptr,
+    ItemVarStoreInstancer instancer (&(get_var_store ()),
+	                         &(get_delta_set_index_map ()),
 	                         c->plan->normalized_coords.as_array ());
 
     if (!colr_prime->baseGlyphList.serialize_subset (c, baseGlyphList, this, instancer))
@@ -2509,8 +2509,8 @@ struct COLR
     if (version >= 1)
     {
       hb_barrier ();
-      ItemVarStoreInstancer instancer (&(this+varStore),
-                                      &(this+varIdxMap),
+      ItemVarStoreInstancer instancer (&(get_var_store ()),
+                                      &(get_delta_set_index_map ()),
                                       hb_array (font->coords, font->num_coords));
 
       if (get_clip (glyph, extents, instancer))
@@ -2572,8 +2572,8 @@ struct COLR
   bool
   paint_glyph (hb_font_t *font, hb_codepoint_t glyph, hb_paint_funcs_t *funcs, void *data, unsigned int palette_index, hb_color_t foreground, bool clip = true) const
   {
-    ItemVarStoreInstancer instancer (has_var_store() ? &(this+varStore): nullptr,
-	                         has_delta_set_index_map() ? &(this+varIdxMap): nullptr,
+    ItemVarStoreInstancer instancer (&(get_var_store ()),
+	                         &(get_delta_set_index_map ()),
 	                         hb_array (font->coords, font->num_coords));
     hb_paint_context_t c (this, funcs, data, font, palette_index, foreground, instancer);
     c.current_glyphs.add (glyph);