diff --git a/logicals.qmd b/logicals.qmd
index e00a00b..907e196 100644
--- a/logicals.qmd
+++ b/logicals.qmd
@@ -591,6 +591,6 @@ That's easier to express with a combination of `consecutive_id()` and `slice_hea
 
 ```{r}
 df |> 
-  group_by(id = consecutive_id(grp)) |> 
+  group_by(id = consecutive_id(x)) |> 
   slice_head(n = 1)
 ```