diff --git a/exercises/_04-ex-explore-categorical.qmd b/exercises/_04-ex-explore-categorical.qmd
index e6c8e9c6..3481fbf8 100644
--- a/exercises/_04-ex-explore-categorical.qmd
+++ b/exercises/_04-ex-explore-categorical.qmd
@@ -1,7 +1,9 @@
 1.  **Antibiotic use in children.** The bar plot and the pie chart below show the distribution of pre-existing medical conditions of children involved in a study on the optimal duration of antibiotic use in treatment of tracheitis, which is an upper respiratory infection.[^_04-ex-explore-categorical-1]
 
     ```{r}
-    #| out.width: 100%
+    #| out-width: 100%
+    #| fig-width: 10
+
     library(openintro)
     library(tidyverse)
     library(patchwork)