GoLang - Is there a way to profile memory usage of code that uses reflect?

I am using gocraft/web in a project and am trying to debug some high memory usage. gocraft/web uses reflection to call handlers. I've set up the net/http/pprof profiler which works very well, but the largest block of memory, and the one that I am iterested in, only shows reflect.Value.call as the function. That's not very helpful.

How can I get around the fact that gocraft/web is using reflection and dig deeper into the memory profile?

Here's an example of the profile output I am seeing: