diff --git a/src/SUMMARY.md b/src/SUMMARY.md
index 7cc41e0b..75a77d0a 100644
--- a/src/SUMMARY.md
+++ b/src/SUMMARY.md
@@ -56,7 +56,7 @@
     - [The `ty` module: representing types](./ty.md)
         - [Generics and substitutions](./generics.md)
         - [`TypeFolder` and `TypeFoldable`](./ty-fold.md)
-    - [Generic arguments](./generic_arguments.md)
+        - [Generic arguments](./generic_arguments.md)
     - [Type inference](./type-inference.md)
     - [Trait solving (old-style)](./traits/resolution.md)
         - [Higher-ranked trait bounds](./traits/hrtb.md)