diff --git a/testdata/README.md b/testdata/README.md
index a7dd795..ac8098e 100644
--- a/testdata/README.md
+++ b/testdata/README.md
@@ -857,7 +857,7 @@ reading flow (`capsule.Open`, §63) must fail.
     chain hash unless `chain_hash` says another, and decodes and verifies it
     at step 10: one that breaks a rule of step 10 gets the code of step 10.
     The clock is not compared with the round time (step 9.c): with a `now`
-    before it, the capsule opens all the same. Every case but three is
+    before it, the capsule opens all the same. Every case but two is
     `supplied`.
   - `network`: a network source, such as a drand relay. It is never asked
     before the round time (step 9.c), and it verifies its answer with the
@@ -892,7 +892,7 @@ reading flow (`capsule.Open`, §63) must fail.
 Every case reproduces offline: the recorded release stands in for the network.
 
 What v0.15 changed in this file: every case gained `source`, `supplied` but
-for three; the further case "round not reached yet", a valid release of round
+for two; the further case "round not reached yet", a valid release of round
 1000 and a clock one nanosecond before its round time, was
 `ERR_RELEASE_UNAVAILABLE` at step 9 and now opens (`ok`, step 0, with
 `network` true), because the release is in the caller's hand; and four cases