diff --git a/wp-includes/class-wp-block-styles-registry.php b/wp-includes/class-wp-block-styles-registry.php
index f1e28794bb..f56d0e2d72 100644
--- a/wp-includes/class-wp-block-styles-registry.php
+++ b/wp-includes/class-wp-block-styles-registry.php
@@ -43,7 +43,7 @@ final class WP_Block_Styles_Registry {
 	public function register( $block_name, $style_properties ) {
 
 		if ( ! isset( $block_name ) || ! is_string( $block_name ) ) {
-			$message = __( 'Block name name must be a string.' );
+			$message = __( 'Block name must be a string.' );
 			_doing_it_wrong( __METHOD__, $message, '5.3.0' );
 			return false;
 		}
diff --git a/wp-includes/version.php b/wp-includes/version.php
index c0db7d6069..4534822993 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.4-alpha-46600';
+$wp_version = '5.4-alpha-46601';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.