diff --git a/runtime/doc/if_pyth.txt b/runtime/doc/if_pyth.txt
index bf21f8c..dcdcf20 100644
--- a/runtime/doc/if_pyth.txt
+++ b/runtime/doc/if_pyth.txt
@@ -400,6 +400,9 @@
 				This is zero in case it cannot be determined
 				(e.g. when the window object belongs to other
 				tab page).
+ 	row, col (read-only)	On-screen window position in display cells.
+				First position is zero.
+
 The height attribute is writable only if the screen is split horizontally.
 The width attribute is writable only if the screen is split vertically.