diff --git a/tests/README b/tests/README
--- a/tests/README
+++ b/tests/README
@@ -16,10 +16,10 @@ test-<x>.err.
 There are some tricky points here that you should be aware of when
 writing tests:
 
-- hg commit and hg up -m want user interaction
+- hg commit and hg merge want user interaction
 
   for commit use -m "text"
-  for hg up -m, set HGMERGE to something noninteractive (like true or merge)
+  for hg merge, set HGMERGE to something noninteractive (like true or merge)
 
 - changeset hashes will change based on user and date which make
   things like hg history output change