diff --git a/episodes/04-data-structures-part1.Rmd b/episodes/04-data-structures-part1.Rmd
index e2ac9d8d1..80e8947d2 100644
--- a/episodes/04-data-structures-part1.Rmd
+++ b/episodes/04-data-structures-part1.Rmd
@@ -367,7 +367,7 @@ Using the object `cats2`:
 _____
 
 # 2. Show an overview of the table with all data types
-_____(cats)
+_____(cats2)
 
 # 3. The "weight" column has the incorrect data type __________.
 #    The correct data type is: ____________.