diff --git a/intro.Rmd b/intro.Rmd
index 5b492b4..da2e9f5 100644
--- a/intro.Rmd
+++ b/intro.Rmd
@@ -222,7 +222,7 @@ To keep up with the R community more broadly, we recommend reading <http://www.r
 
 ## Acknowledgements
 
-This book isn't just the product of Hadley and Garrett, but is the result of many conversations (in person and online) that we've had with the many people in the R community. There are few people we'd like to thank in particularly, because they have spent many hoursanswering our dumb questions and helping us to better think about data science:
+This book isn't just the product of Hadley and Garrett, but is the result of many conversations (in person and online) that we've had with the many people in the R community. There are few people we'd like to thank in particularly, because they have spent many hours answering our dumb questions and helping us to better think about data science:
 
 * Jenny Bryan and Lionel Henry for many helpful discussions around working
   with lists and list-columns.