diff --git a/Makefile.am b/Makefile.am
index 329e98e1..126dcdab 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1,3 +1,3 @@
 ACLOCAL_AMFLAGS = -I m4
 SUBDIRS = src
-EXTRA_DIST = ckpool.conf ckproxy.conf
+EXTRA_DIST = ckpool.conf ckproxy.conf README README-SOLOMINING
diff --git a/README-SOLOMINING b/README-SOLOMINING
index 5784bc03..6c761da2 100644
--- a/README-SOLOMINING
+++ b/README-SOLOMINING
@@ -143,4 +143,9 @@ mining solo locally should be reserved as a backup operation only unless you
 have the skills, hardware, and data centre quality connectivity to minimise
 latency.
 
+Mining on testnet may create a cascade of solved competing blocks when the diff
+is 1. This is normal as the default behaviour is optimised around mainnet
+mining where block solving is rare.
+
+
 Good luck.