diff --git a/core/iwasm/include/wasm_export.h b/core/iwasm/include/wasm_export.h
index bd10a2530..b08ebd88e 100644
--- a/core/iwasm/include/wasm_export.h
+++ b/core/iwasm/include/wasm_export.h
@@ -922,6 +922,12 @@ wasm_runtime_get_native_addr_range(wasm_module_inst_t module_inst,
 /**
  * Register native functions with same module name
  *
+ * Note: The array `native_symbols` should not be read-only because the
+ * library can modify it in-place.
+ *
+ * Note: After successful call of this function, the array `native_symbols`
+ * is owned by the library.
+ *
  * @param module_name the module name of the native functions
  * @param native_symbols specifies an array of NativeSymbol structures which
  *        contain the names, function pointers and signatures