diff --git a/src/TopOpt.jl b/src/TopOpt.jl
index 74805feb..c747e407 100644
--- a/src/TopOpt.jl
+++ b/src/TopOpt.jl
@@ -50,7 +50,11 @@ export PseudoDensities
 include(joinpath("Utilities", "Utilities.jl"))
 using .Utilities
 
-function visualize end
+function visualize(arg::T; kwargs...) where {T}
+    return error(
+        "`visualize` is not defined for input type `$T`. This may be because the input to the function is incorrect or because you forgot to load `Makie` in your code. You can load `Makie` with `using Makie`. To see the available methods of `visualize` and their documentation, you can run `? visualize` in the Julia REPL.",
+    )
+end
 
 # Topopology optimization problem definitions
 include(joinpath("TopOptProblems", "TopOptProblems.jl"))