diff --git a/modules/field/field.info.inc b/modules/field/field.info.inc
index 33c43d57b593a7f380fba38dda2e2101f7a50dca..4a0248ffde60ea1589fbc6cc67702f74119ee220 100644
--- a/modules/field/field.info.inc
+++ b/modules/field/field.info.inc
@@ -605,7 +605,8 @@ function field_info_fields() {
  *
  * @param $field_name
  *   The name of the field to retrieve. $field_name can only refer to a
- *   non-deleted field.
+ *   non-deleted, active field. Use field_read_fields() to retrieve information
+ *   on deleted or inactive fields.
  *
  * @return
  *   The field array, as returned by field_read_fields(), with an