diff --git a/wp-includes/class-wp-image-editor-gd.php b/wp-includes/class-wp-image-editor-gd.php
index b91d6133e9..4ee8be3c0f 100644
--- a/wp-includes/class-wp-image-editor-gd.php
+++ b/wp-includes/class-wp-image-editor-gd.php
@@ -91,8 +91,8 @@ class WP_Image_Editor_GD extends WP_Image_Editor {
 		 *
 		 * @since 3.5.0
 		 *
-		 * @param string $limit Maximum memory limit to allocate for images. Default value
-		 *                      of WP_MAX_MEMORY_LIMIT is '256M'.
+		 * @param int|string $limit Maximum memory limit to allocate for images. Default WP_MAX_MEMORY_LIMIT.
+		 *                          Accepts an integer (bytes), or a shorthand string notation, such as '256M'.
 		 */
 		// Set artificially high because GD uses uncompressed images in memory
 		@ini_set( 'memory_limit', apply_filters( 'image_memory_limit', WP_MAX_MEMORY_LIMIT ) );
diff --git a/wp-includes/class-wp-image-editor.php b/wp-includes/class-wp-image-editor.php
index 908a11340d..7f6488f91f 100644
--- a/wp-includes/class-wp-image-editor.php
+++ b/wp-includes/class-wp-image-editor.php
@@ -217,7 +217,8 @@ abstract class WP_Image_Editor {
 		 *
 		 * @since 3.5.0
 		 *
-		 * @param int $quality Quality level between 1 (low) and 100 (high).
+		 * @param int    $quality   Quality level between 1 (low) and 100 (high).
+		 * @param string $mime_type Image mime type.
 		 */
 		$quality = apply_filters( 'wp_editor_set_quality', $quality, $this->mime_type );