diff --git a/wp-admin/includes/image.php b/wp-admin/includes/image.php
index 12f38049dc..fe7c691e7c 100644
--- a/wp-admin/includes/image.php
+++ b/wp-admin/includes/image.php
@@ -863,12 +863,7 @@ function file_is_valid_image( $path ) {
  * @return bool True if suitable, false if not suitable.
  */
 function file_is_displayable_image( $path ) {
-	$displayable_image_types = array( IMAGETYPE_GIF, IMAGETYPE_JPEG, IMAGETYPE_PNG, IMAGETYPE_BMP );
-
-	// IMAGETYPE_ICO is only defined in PHP 5.3+.
-	if ( defined( 'IMAGETYPE_ICO' ) ) {
-		$displayable_image_types[] = IMAGETYPE_ICO;
-	}
+	$displayable_image_types = array( IMAGETYPE_GIF, IMAGETYPE_JPEG, IMAGETYPE_PNG, IMAGETYPE_BMP, IMAGETYPE_ICO );
 
 	$info = @getimagesize( $path );
 	if ( empty( $info ) ) {
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 6581e9a071..e6f889218c 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.3-alpha-46216';
+$wp_version = '5.3-alpha-46217';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.