diff --git a/src/wp-includes/functions.php b/src/wp-includes/functions.php
index 5111b84dc1..bcd56f748d 100644
--- a/src/wp-includes/functions.php
+++ b/src/wp-includes/functions.php
@@ -205,14 +205,14 @@ function wp_maybe_decline_date( $date ) {
 }
 
 /**
- * Convert integer number to format based on the locale.
+ * Convert float number to format based on the locale.
  *
  * @since 2.3.0
  *
  * @global WP_Locale $wp_locale
  *
- * @param int $number   The number to convert based on locale.
- * @param int $decimals Optional. Precision of the number of decimal places. Default 0.
+ * @param float $number   The number to convert based on locale.
+ * @param int   $decimals Optional. Precision of the number of decimal places. Default 0.
  * @return string Converted number in string format.
  */
 function number_format_i18n( $number, $decimals = 0 ) {