diff --git a/projects/packages/publicize/changelog/update-post-connections-field-config b/projects/packages/publicize/changelog/update-post-connections-field-config
new file mode 100644
index 0000000000000..0dbad0f9b08d9
--- /dev/null
+++ b/projects/packages/publicize/changelog/update-post-connections-field-config
@@ -0,0 +1,4 @@
+Significance: patch
+Type: changed
+
+Adjusted the initialisation logic for the connections field.
diff --git a/projects/packages/publicize/src/class-connections-post-field.php b/projects/packages/publicize/src/class-connections-post-field.php
index 6d632ee5ccbb3..a0277dd73bca7 100644
--- a/projects/packages/publicize/src/class-connections-post-field.php
+++ b/projects/packages/publicize/src/class-connections-post-field.php
@@ -33,6 +33,15 @@ class Connections_Post_Field {
 	 */
 	public $memoized_updates = array();
 
+	/**
+	 * Constructor.
+	 */
+	public function __construct() {
+		// Adding on a higher priority to make sure we're the first field registered.
+		// The priority parameter can be removed once we deprecate WPCOM_REST_API_V2_Post_Publicize_Connections_Field
+		add_action( 'rest_api_init', array( $this, 'register_fields' ), 5 );
+	}
+
 	/**
 	 * Registers the jetpack_publicize_connections field. Called
 	 * automatically on `rest_api_init()`.
@@ -490,3 +499,7 @@ private function is_valid_for_context( $schema, $context ) {
 		return empty( $schema['context'] ) || in_array( $context, $schema['context'], true );
 	}
 }
+
+if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) {
+	wpcom_rest_api_v2_load_plugin( 'Automattic\Jetpack\Publicize\Connections_Post_Field' );
+}
diff --git a/projects/packages/publicize/src/class-publicize-setup.php b/projects/packages/publicize/src/class-publicize-setup.php
index 383ef289fab5e..091517911b906 100644
--- a/projects/packages/publicize/src/class-publicize-setup.php
+++ b/projects/packages/publicize/src/class-publicize-setup.php
@@ -34,12 +34,9 @@ public static function on_jetpack_feature_publicize_enabled() {
 
 		if ( ! isset( $publicize_ui ) ) {
 			$publicize_ui = new Publicize_UI();
-
 		}
 
-		// Adding on a higher priority to make sure we're the first field registered.
-		// The priority parameter can be removed once we deprecate WPCOM_REST_API_V2_Post_Publicize_Connections_Field
-		add_action( 'rest_api_init', array( new Connections_Post_Field(), 'register_fields' ), 5 );
+		new Connections_Post_Field();
 		add_action( 'rest_api_init', array( new REST_Controller(), 'register_rest_routes' ) );
 		add_action( 'current_screen', array( static::class, 'init_sharing_limits' ) );