diff --git a/lib/private/legacy/OC_Helper.php b/lib/private/legacy/OC_Helper.php
index 6aa0b582c216a..733085c0f3a9d 100644
--- a/lib/private/legacy/OC_Helper.php
+++ b/lib/private/legacy/OC_Helper.php
@@ -95,7 +95,7 @@ public static function humanFileSize($bytes) {
 	/**
 	 * Make a computer file size
 	 * @param string $str file size in human readable format
-	 * @return float|bool a file size in bytes
+	 * @return int|false a file size in bytes
 	 *
 	 * Makes 2kB to 2048.
 	 *
@@ -104,7 +104,7 @@ public static function humanFileSize($bytes) {
 	public static function computerFileSize($str) {
 		$str = strtolower($str);
 		if (is_numeric($str)) {
-			return (float)$str;
+			return (int)$str;
 		}
 
 		$bytes_array = [
@@ -131,7 +131,7 @@ public static function computerFileSize($str) {
 
 		$bytes = round($bytes);
 
-		return $bytes;
+		return (int)$bytes;
 	}
 
 	/**
diff --git a/lib/private/legacy/OC_Util.php b/lib/private/legacy/OC_Util.php
index edee23995f1a3..959e8c0260964 100644
--- a/lib/private/legacy/OC_Util.php
+++ b/lib/private/legacy/OC_Util.php
@@ -158,7 +158,7 @@ public static function isDefaultExpireDateEnforced() {
 	 * Get the quota of a user
 	 *
 	 * @param IUser|null $user
-	 * @return float Quota bytes
+	 * @return int|\OCP\Files\FileInfo::SPACE_UNLIMITED|false Quota bytes
 	 */
 	public static function getUserQuota(?IUser $user) {
 		if (is_null($user)) {