diff --git a/test/test_defaults.jl b/test/test_defaults.jl
index cb8b90a0..96c0ac44 100644
--- a/test/test_defaults.jl
+++ b/test/test_defaults.jl
@@ -4,7 +4,7 @@ const PLOTS_DEFAULTS = Dict(:theme => :wong2)
 Plots.__init__()
 
 @testset "Loading theme" begin
-    @test plot(1:5)[1][1][:seriescolor] == colorant"black"
+    @test plot(1:5)[1][1][:seriescolor] == RGBA(colorant"black")
 end
 
 empty!(PLOTS_DEFAULTS)