diff --git a/docs/user_manual/processing_algs/qgis/vectorgeneral.rst b/docs/user_manual/processing_algs/qgis/vectorgeneral.rst
index 1bba356e672..f685d08359f 100644
--- a/docs/user_manual/processing_algs/qgis/vectorgeneral.rst
+++ b/docs/user_manual/processing_algs/qgis/vectorgeneral.rst
@@ -877,8 +877,8 @@ Python code
 
 Execute SQL
 -----------
-Runs a simple or complex query with ``SQL`` syntax on the source
-layer.
+Runs a simple or complex query based only on SELECT with ``SQL`` syntax 
+on the source layer.
 
 Input datasources are identified with ``input1``, ``input2``... ``inputN`` and
 a simple query will look like ``SELECT * FROM input1``.