diff --git a/src/methods/polygonize.jl b/src/methods/polygonize.jl
index 49e7c5f6c..debb4f6ac 100644
--- a/src/methods/polygonize.jl
+++ b/src/methods/polygonize.jl
@@ -19,7 +19,8 @@ polygonize
 
 Here's a basic example, using the `Makie.peaks()` function.  First, let's investigate the nature of the function:
 ```@example polygonize
-using Makie, GeometryOps
+using Makie, CairoMakie, GeoInterfaceMakie
+using GeometryOps
 n = 49
 xs, ys = LinRange(-3, 3, n), LinRange(-3, 3, n)
 zs = Makie.peaks(n)