diff --git a/wp-includes/media.php b/wp-includes/media.php
index f9b47e4c90..43b5aab4f9 100644
--- a/wp-includes/media.php
+++ b/wp-includes/media.php
@@ -1902,16 +1902,22 @@ function adjacent_image_link($prev = true, $size = 'thumbnail', $text = false) {
 	$post = get_post();
 	$attachments = array_values( get_children( array( 'post_parent' => $post->post_parent, 'post_status' => 'inherit', 'post_type' => 'attachment', 'post_mime_type' => 'image', 'order' => 'ASC', 'orderby' => 'menu_order ID' ) ) );
 
-	foreach ( $attachments as $k => $attachment )
-		if ( $attachment->ID == $post->ID )
+	foreach ( $attachments as $k => $attachment ) {
+		if ( $attachment->ID == $post->ID ) {
 			break;
+		}
+	}
 
-	$k = $prev ? $k - 1 : $k + 1;
+	$output = '';
+	$attachment_id = 0;
 
-	$output = $attachment_id = null;
-	if ( isset( $attachments[ $k ] ) ) {
-		$attachment_id = $attachments[ $k ]->ID;
-		$output = wp_get_attachment_link( $attachment_id, $size, true, false, $text );
+	if ( $attachments ) {
+		$k = $prev ? $k - 1 : $k + 1;
+
+		if ( isset( $attachments[ $k ] ) ) {
+			$attachment_id = $attachments[ $k ]->ID;
+			$output = wp_get_attachment_link( $attachment_id, $size, true, false, $text );
+		}
 	}
 
 	$adjacent = $prev ? 'previous' : 'next';