diff --git a/lib/class-wp-theme-json-gutenberg.php b/lib/class-wp-theme-json-gutenberg.php
index 9c167d9abb141d..6edcb58d3d1866 100644
--- a/lib/class-wp-theme-json-gutenberg.php
+++ b/lib/class-wp-theme-json-gutenberg.php
@@ -11,7 +11,7 @@
  *
  * This class is for internal core usage and is not supposed to be used by extenders (plugins and/or themes).
  * This is a low-level API that may need to do breaking changes. Please,
- * use get_global_settings, get_global_styles, and get_global_stylesheet instead.
+ * use gutenberg_get_global_settings, gutenberg_get_global_styles, and gutenberg_get_global_stylesheet instead.
  *
  * @access private
  */
diff --git a/lib/class-wp-theme-json-resolver-gutenberg.php b/lib/class-wp-theme-json-resolver-gutenberg.php
index 05d8b56e49727b..8733fd13bf2c77 100644
--- a/lib/class-wp-theme-json-resolver-gutenberg.php
+++ b/lib/class-wp-theme-json-resolver-gutenberg.php
@@ -12,7 +12,7 @@
  *
  * This class is for internal core usage and is not supposed to be used by extenders (plugins and/or themes).
  * This is a low-level API that may need to do breaking changes. Please,
- * use get_global_settings, get_global_styles, and get_global_stylesheet instead.
+ * use gutenberg_get_global_settings, gutenberg_get_global_styles, and gutenberg_get_global_stylesheet instead.
  *
  * @access private
  */