gheatmap seems to close open.angle for ggtree

Question

I am creating a tree like this:

simple_plot <-
  ggtree::ggtree(phyloobj, 
                 layout = "fan", 
                 open.angle = 20,
                 ladderize = T, 
                 lwd = .2)

And I add a gheatmap like this:

h1 <- gheatmap(simple_plot, Year, offset = 6, width = 0.1, color = NULL, colnames = FALSE)+
  scale_fill_brewer(palette="Paired") +
  theme(legend.position = "bottom",
        legend.title = element_text(size = 12),
        legend.text = element_text(size = 10),
        legend.box = "vertical", legend.margin = margin())

However, while I do get a nice opening in the tree if I just plot the simple_plot, when I add the the gheatmap, that opening goes away.

How do I get gheatmap not to close my open.angle?