diff --git a/README.md b/README.md
index 4075d686b720b4ae7830185a69bc024132d1b1b8..f8596e2d18e5ec54a7bb5c0c478aec23ab88b528 100644
--- a/README.md
+++ b/README.md
@@ -379,4 +379,6 @@ Useful configuration options:
 
 For debugging it is possible to run all clients and replicas in a single process by
 running `REFITLocalSystem` which expects a test run duration in seconds as first
-parameter.
+parameter. The access the state of all replicas pause the process in a debugger,
+select the "main" thread and choose the stack frame pointing to REFITLocalSystem.
+There all replicas are available via the "replicas" array.