diff --git a/test/runtests.jl b/test/runtests.jl
index 8ac61432..1d77c696 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -37,7 +37,7 @@ end
 
 @testset "Trajectories" begin
     include("trajectories/simulate.jl")
-    #   include("trajectories/transition.jl")
+    include("trajectories/transition.jl")
 end
 
 @testset "Extensions" begin