diff --git a/src/Checksum_Plugin_Command.php b/src/Checksum_Plugin_Command.php
index 048be108..34c3f001 100644
--- a/src/Checksum_Plugin_Command.php
+++ b/src/Checksum_Plugin_Command.php
@@ -294,6 +294,7 @@ private function fetch_version_from_wp_org( $plugin_slug ) {
 			return false;
 		}
 
+		/** @var array{version: string} $plugin_data */
 		$version = $plugin_data['version'];
 		WP_CLI::warning( "Could not determine the version of plugin {$plugin_slug} from its files. Assuming the current stable version ({$version}) from WordPress.org." );