diff --git a/rmarkdown-workflow.Rmd b/rmarkdown-workflow.Rmd
index 400ec85..bd03c68 100644
--- a/rmarkdown-workflow.Rmd
+++ b/rmarkdown-workflow.Rmd
@@ -55,7 +55,7 @@ Much of the good advice about using lab notebooks effectively can also be transl
     __packrat__, <http://rstudio.github.io/packrat/>, which store packages 
     in your project directory, or __checkpoint__,
     <https://github.com/RevolutionAnalytics/checkpoint>, which will reinstall
-    packages avaialble on a specified date. A quick and dirty hack is to include
+    packages available on a specified date. A quick and dirty hack is to include
     a chunk that runs `sessionInfo()` --- that won't you let easily recreate 
     your packages as they are today, but at least you'll know what they were.