diff --git a/src/output.jl b/src/output.jl
index aa5f89a3..9fe661f4 100644
--- a/src/output.jl
+++ b/src/output.jl
@@ -260,8 +260,6 @@ function _showjuno(io::IO, m::MIME"image/svg+xml", plt)
   end
 end
 
-function Base.showable(m::MIME"application/prs.juno.plotpane+html", plt::P) where P <: Plot
-    return showable(MIME("text/html"), plt)
-end
+Base.showable(::MIME"application/prs.juno.plotpane+html", plt::Plot) = showable(MIME"text/html"(), plt)
 
 _showjuno(io::IO, m, plt) = _show(io, m, plt)