diff --git a/asset-manager.php b/asset-manager.php
index 702a6ab..e3576d9 100644
--- a/asset-manager.php
+++ b/asset-manager.php
@@ -16,12 +16,15 @@
  * Requires at least: 6.3
  */
 
-// Check the minimum required WordPress version
+// Check the minimum required WordPress version.
 if ( version_compare( $GLOBALS['wp_version'], '6.3', '<' ) ) {
     add_action( 'admin_notices', 'am_minimum_wp_version_notice' );
     return;
 }
 
+/**
+ * Display an admin notice if the minimum required WordPress version is not met.
+ */
 function am_minimum_wp_version_notice() {
     $message = sprintf(
         __( 'Asset Manager requires WordPress version %s or higher. Please update WordPress to use this plugin.', 'am' ),
diff --git a/php/class-asset-manager.php b/php/class-asset-manager.php
index 9921579..d1ea525 100644
--- a/php/class-asset-manager.php
+++ b/php/class-asset-manager.php
@@ -299,11 +299,12 @@ public function add_asset( $args ) {
 			// Enqueue asset if applicable.
 			if ( in_array( $args['load_method'], $this->wp_enqueue_methods, true ) && empty( $args['loaded'] ) ) {
 				if ( function_exists( $wp_enqueue_function ) ) {
-					$enqueue_options = [];
 					if ( 'style' === $args['type'] ) {
 						$enqueue_options = $args['media'];
 					} else {
-						$enqueue_options['in_footer'] = $args['in_footer'];
+						$enqueue_options = [
+							'in_footer' => $args['in_footer'],
+						];
 						if ( in_array( $args['load_method'], [ 'async', 'defer' ], true ) ) {
 							$enqueue_options['strategy'] = $args['load_method'];
 						}
diff --git a/tests/test-scripts.php b/tests/test-scripts.php
index 29ac82f..6ab4674 100644
--- a/tests/test-scripts.php
+++ b/tests/test-scripts.php
@@ -162,4 +162,19 @@ function test_add_to_async() {
 		\Asset_Manager_Scripts::instance()->add_to_async( $async_script );
 		$this->assertContains( 'async-script-test', \Asset_Manager_Scripts::instance()->async_scripts, 'A script should not be added to the $async_scripts property twice' );
 	}
+
+	/**
+     * Test defer attribute handling.
+     */
+    public function test_defer_attribute() {
+
+		// Enqueue the script with the defer attribute.
+		am_enqueue_script( $this->test_script['handle'], $this->test_script['src'], [], 'global', 'defer' );
+
+        // Get the script tag output.
+        $script_output = get_echo( 'wp_print_scripts', [ $this->test_script['handle'] ] );
+
+		// Check if the script tag has the defer attribute.
+        $this->assertStringContainsString( 'data-wp-strategy="defer"', $script_output );
+    }
 }