[wasm-api-list] Add TODO
diff --git a/src/hb-wasm-api-list.hh b/src/hb-wasm-api-list.hh
index 2f0ede1..58fb18e 100644
--- a/src/hb-wasm-api-list.hh
+++ b/src/hb-wasm-api-list.hh
@@ -47,7 +47,9 @@
 
 #define NATIVE_SYMBOL(signature, name) {#name, (void *) hb::wasm::name, signature, NULL}
 /* Note: the array must be static defined since runtime will keep it after registration
- * https://github.com/bytecodealliance/wasm-micro-runtime/blob/main/doc/export_native_api.md */
+ * https://github.com/bytecodealliance/wasm-micro-runtime/blob/main/doc/export_native_api.md
+ *
+ * TODO Allocate this lazily in _hb_wasm_init(). */
 static NativeSymbol _hb_wasm_native_symbols[] =
 {
   /* common */