diff --git a/session_4/session_4.Rmd b/session_4/session_4.Rmd
index ee6f04a5556cb56c1a09944f2cd98c7d04df710e..bd2638bec69b32e42a7cf9c10a4b4acea46a0d30 100644
--- a/session_4/session_4.Rmd
+++ b/session_4/session_4.Rmd
@@ -42,6 +42,7 @@ As usual you will also need the `tidyverse` library.
 
 <details><summary>Solution</summary>
   <p> 
+  
 ```{r installP, eval = F}
 install.packages("nycflights13")
 ```