diff --git a/lib/compat/wordpress-6.7/block-bindings.php b/lib/compat/wordpress-6.7/block-bindings.php
index bde1277b66b7b..70ba523ac966e 100644
--- a/lib/compat/wordpress-6.7/block-bindings.php
+++ b/lib/compat/wordpress-6.7/block-bindings.php
@@ -19,7 +19,7 @@ function gutenberg_bootstrap_server_block_bindings_sources() {
 				'usesContext' => $source->uses_context,
 			);
 		}
-		$script = sprintf( 'for ( const source of %s ) { wp.blocks.registerBlockBindingsSource( source ); }', wp_json_encode( $filtered_sources ) );
+		$script = sprintf( 'for ( const source of %s ) { ! wp.blocks.getBlockBindingsSource( source.name ) && wp.blocks.registerBlockBindingsSource( source ); }', wp_json_encode( $filtered_sources ) );
 		wp_add_inline_script(
 			'wp-blocks',
 			$script