diff --git a/quarto/precalc/julia_overview.qmd b/quarto/precalc/julia_overview.qmd
index 3401291..ccb501a 100644
--- a/quarto/precalc/julia_overview.qmd
+++ b/quarto/precalc/julia_overview.qmd
@@ -518,7 +518,7 @@ We must load `Plots` before we can plot (and it must be installed before we can
 
 ```{julia}
 using Plots
-plotly()  # optinally change the backend from the default
+plotly()  # optionally change the backend from the default
 ```
 
 With `Plots` loaded, we can plot a function by passing the function object by name to `plot`, specifying the range of `x` values to show, as follows: