diff --git a/api.rst b/api.rst
index 34c8d4abf..cf529570f 100644
--- a/api.rst
+++ b/api.rst
@@ -208,7 +208,7 @@ You can specify a path for a ``json`` or ``jsonb`` column using the arrow operat
 Computed Columns
 ~~~~~~~~~~~~~~~~
 
-Filters may be applied to computed columns as well as actual table/view columns, even though the computed columns will not appear in the output. For example, to search first and last names at once we can create a computed column that will not appear in the output but can be used in a filter:
+Filters may be applied to computed columns(**a.k.a. virtual columns**) as well as actual table/view columns, even though the computed columns will not appear in the output. For example, to search first and last names at once we can create a computed column that will not appear in the output but can be used in a filter:
 
 .. code-block:: postgres