diff --git a/wp-admin/includes/image.php b/wp-admin/includes/image.php
index d596db4dab..139d405070 100644
--- a/wp-admin/includes/image.php
+++ b/wp-admin/includes/image.php
@@ -194,7 +194,9 @@ function wp_generate_attachment_metadata( $attachment_id, $file ) {
 	}
 
 	// Remove the blob of binary data from the array.
-	unset( $metadata['image']['data'] );
+	if ( $metadata ) {
+		unset( $metadata['image']['data'] );
+	}
 
 	/**
 	 * Filter the generated attachment meta data.
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 86dc47d401..f88d96fff5 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.4-beta3-35553';
+$wp_version = '4.4-beta3-35554';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.