diff --git a/docs/src/public/state_estim.md b/docs/src/public/state_estim.md
index d1c87635..656a8cc1 100644
--- a/docs/src/public/state_estim.md
+++ b/docs/src/public/state_estim.md
@@ -77,7 +77,7 @@ ExtendedKalmanFilter
 InternalModel
 ```
 
-## Default model augmentation
+## Default Model Augmentation
 
 ```@docs
 default_nint