diff --git a/docs/make.jl b/docs/make.jl
index 8b17234e45..c6e1f8aeb1 100644
--- a/docs/make.jl
+++ b/docs/make.jl
@@ -742,6 +742,7 @@ function main()
             ),
             sitename = "Plots",
             authors = "Thomas Breloff",
+            warnonly = true,
             pages,
         )
     catch e