diff --git a/book/chapter-05-gbdialog-reference.md b/book/chapter-05-gbdialog-reference.md
index 2c0687df..49ac9ed9 100644
--- a/book/chapter-05-gbdialog-reference.md
+++ b/book/chapter-05-gbdialog-reference.md
@@ -63,6 +63,7 @@ The following file types are loaded from a .gbdialog package: `.vbs`, `.vb`, `.b
 | TABLE name ON connection | Defines a TABLE on specified storage (database) connection. | 
 | field AS dataType| Defines a field in TABLE. Eg.: name string(50). | 
 | FILL| Fills a data into a Word document to be exported as images | 
+| INCLUDE file | Includes a file into .gbdialog | 
 
 ### Internal Variables and Functions.