diff --git a/core/includes/language.inc b/core/includes/language.inc
index 2c46c76..82edaba 100644
--- a/core/includes/language.inc
+++ b/core/includes/language.inc
@@ -376,7 +376,7 @@ function language_from_default() {
 }
 
 /**
- * Split the given path into prefix and actual path.
+ * Splits the given path into prefix and actual path.
  *
  * Parse the given path and return the language object identified by the
  * prefix and the actual path.
@@ -409,10 +409,10 @@ function language_url_split_prefix($path, $languages) {
 }
 
 /**
- * Return the possible fallback languages ordered by language weight.
+ * Returns the possible fallback languages ordered by language weight.
  *
  * @param
- *   The language type.
+ *   (optional) The language type. Defaults to LANGUAGE_TYPE_CONTENT.
  *
  * @return
  *   An array of language codes.