diff --git a/03-programming.Rmd b/03-programming.Rmd
index bc54aa9..f7407e1 100644
--- a/03-programming.Rmd
+++ b/03-programming.Rmd
@@ -70,7 +70,7 @@ has
 It isn't that the `for` loop is slow, rather it is because we have many more function calls. Each individual function call is quick, but the total combination is slow.
 
 ```{block, type="rmdnote"}
-Everything in R is a function call. When we execute `1 + 1`, we are actually executing `'+'(1, 1)`.
+Everything in R is a function call. When we execute `1 + 1`, we are actually executing `` `+`(1,1) ``.
 ```
 
 #### Exercise {-}