diff --git a/wp-includes/class-wp-error.php b/wp-includes/class-wp-error.php
index 2e384d0fe2..c73e22b794 100644
--- a/wp-includes/class-wp-error.php
+++ b/wp-includes/class-wp-error.php
@@ -63,6 +63,15 @@ class WP_Error {
 
 		if ( ! empty($data) )
 			$this->error_data[$code] = $data;
+
+		/**
+		 * Fires when a WP_Error object instance is created.
+		 *
+		 * @since 4.0.0
+		 *
+		 * @param WP_Error $this The WP_Error instance.
+		 */
+		do_action( 'create_wp_error', $this );
 	}
 
 	/**