diff --git a/docs/ref/models/fields.txt b/docs/ref/models/fields.txt
index 384c5e50bf..ea18d468de 100644
--- a/docs/ref/models/fields.txt
+++ b/docs/ref/models/fields.txt
@@ -1343,7 +1343,7 @@ However it is not enforced at the model or database level. Use a
 
 .. attribute:: TextField.db_collation
 
-    The database collation name of the field.
+    Optional. The database collation name of the field.
 
     .. note::