diff --git a/Profiling.asciidoc b/Profiling.asciidoc
index b0009f3..d745474 100644
--- a/Profiling.asciidoc
+++ b/Profiling.asciidoc
@@ -1,3 +1,5 @@
+Embedded Stack Trace Profiler: http://nim-lang.org/docs/estp.html
+
 ==== Profiling Nim with Valgrind
 
 [source,bash]