diff --git a/src/2_a_mental_model_for_futures.md b/src/2_a_mental_model_for_futures.md
index 2da0907..8f38391 100644
--- a/src/2_a_mental_model_for_futures.md
+++ b/src/2_a_mental_model_for_futures.md
@@ -1,7 +1,7 @@
 # A mental model of how Futures and runtimes work
 
 The main goal in this part is to build a high level
-mental model of how the different pieces we read about in the previos chapter
+mental model of how the different pieces we read about in the previous chapter
 works toghether. I hope this will make it easier to understand what we just read
 about in the previous chapter and also explain why we take a deep dive into topics
 like trait objects and generators in the next few chapters.
@@ -72,4 +72,4 @@ this chapter._
 </a>
 <a href="./assets/slides/Slide19.PNG" target="_blank">
  <img src="./assets/slides/Slide19.PNG" alt="slide19"/>
-</a>
\ No newline at end of file
+</a>