diff --git a/build/generate-struct-arrays.js b/build/generate-struct-arrays.js
index 071f41e738c..193774e6412 100644
--- a/build/generate-struct-arrays.js
+++ b/build/generate-struct-arrays.js
@@ -150,6 +150,7 @@ const {
     collisionCircleLayout,
     collisionVertexAttributes,
     placement,
+    symbolInstance,
     glyphOffset,
     lineVertex
 } = require('../src/data/bucket/symbol_attributes');
@@ -162,6 +163,7 @@ createStructArrayType(`collision_box_layout`, collisionBoxLayout);
 createStructArrayType(`collision_circle_layout`, collisionCircleLayout);
 createStructArrayType(`collision_vertex`, collisionVertexAttributes);
 createStructArrayType('placed_symbol', placement, true);
+createStructArrayType('symbol_instance', symbolInstance, true);
 createStructArrayType('glyph_offset', glyphOffset, true);
 createStructArrayType('symbol_line_vertex', lineVertex, true);
 
@@ -233,4 +235,3 @@ export {
     ${[...arrayTypeEntries].join(',\n    ')}
 };
 `);
-
diff --git a/src/data/bucket/symbol_attributes.js b/src/data/bucket/symbol_attributes.js
index e76fd544175..1b79a77f323 100644
--- a/src/data/bucket/symbol_attributes.js
+++ b/src/data/bucket/symbol_attributes.js
@@ -73,6 +73,22 @@ export const placement = createLayout([
     { type: 'Uint8', name: 'hidden' }
 ]);
 
+export const symbolInstance = createLayout([
+    { type: 'Int16', name: 'anchorX' },
+    { type: 'Int16', name: 'anchorY' },
+    { type: 'Int16', name: 'horizontalPlacedTextSymbolIndex' },
+    { type: 'Int16', name: 'verticalPlacedTextSymbolIndex' },
+    { type: 'Uint16', name: 'key' },
+    { type: 'Uint16', name: 'textBoxStartIndex' },
+    { type: 'Uint16', name: 'textBoxEndIndex' },
+    { type: 'Uint16', name: 'iconBoxStartIndex' },
+    { type: 'Uint16', name: 'iconBoxEndIndex' },
+    { type: 'Uint16', name: 'featureIndex' },
+    { type: 'Uint16', name: 'numGlyphVertices' },
+    { type: 'Uint16', name: 'numVerticalGlyphVertices' },
+    { type: 'Uint16', name: 'numIconVertices' }
+]);
+
 export const glyphOffset = createLayout([
     { type: 'Float32', name: 'offsetX' }
 ]);