diff --git a/api/app.md b/api/app.md
index 5802d50..05cb438 100644
--- a/api/app.md
+++ b/api/app.md
@@ -58,7 +58,7 @@ Returns the active [tag](tag.md#tag), which is the tag located at the
 
 ## app.tool
 
-Returns the active tool (a [Tool](tool.md#tool) object) selected in
+Gets or sets the active tool (a [Tool](tool.md#tool) object) selected in
 the [tool bar](https://www.aseprite.org/docs/workspace/).
 
 ## app.brush