diff --git a/quarto/misc/quick_notes.qmd b/quarto/misc/quick_notes.qmd
index 7cc070b..b3e4c82 100644
--- a/quarto/misc/quick_notes.qmd
+++ b/quarto/misc/quick_notes.qmd
@@ -97,7 +97,7 @@ In the following, the defined function, `Derivative`, returns an anonymously def
 
 
 ```{julia}
-Derivatve(f::Function) = x -> ForwardDiff.derivative(f, x)    # ForwardDiff is loaded in CalculusWithJulia
+Derivative(f::Function) = x -> ForwardDiff.derivative(f, x)    # ForwardDiff is loaded in CalculusWithJulia
 ```
 
 (The `D` function of `CalculusWithJulia` implements something similar.)