diff --git a/src/macros/mod.rs b/src/macros/mod.rs
index 035d8e1..da205bd 100644
--- a/src/macros/mod.rs
+++ b/src/macros/mod.rs
@@ -61,6 +61,7 @@ impl TrixyConfig {
     ///                         /* other config settings */;
     /// trixy_config.generate();
     /// ```
+    #[must_use]
     pub fn generate(&self) -> FileTree {
         let mut file_tree = FileTree::new();