diff --git a/docs/src/advanced_usage.md b/docs/src/advanced_usage.md
index 39ec6b3e..dc91dc00 100644
--- a/docs/src/advanced_usage.md
+++ b/docs/src/advanced_usage.md
@@ -1,5 +1,5 @@
 # Advanced usage
-Several non-exported functions that may facilitate working with structures that contain unertain parameters (struct-of-arrays, SoA) exist. These are not to be considered part of the API and are subject to breakage at any time, but may nevertheless be of use in special situations.
+Several non-exported functions that may facilitate working with structures that contain uncertain parameters (struct-of-arrays, SoA) exist. These are not to be considered part of the API and are subject to breakage at any time, but may nevertheless be of use in special situations.
 
 ```@docs
 MonteCarloMeasurements.mean_object