diff --git a/man/certspotter-script.md b/man/certspotter-script.md
index b90be58..4a1321e 100644
--- a/man/certspotter-script.md
+++ b/man/certspotter-script.md
@@ -65,7 +65,7 @@ The following environment variables are set for `discovered_cert` events:
 
 `CERT_SHA256`
 
-:    The hex-encoded SHA-256 digest (sometimes called fingerprint) of the certificate.
+:    The hex-encoded SHA-256 digest (sometimes called fingerprint) of the certificate or precertificate.
      The digest is computed over the ASN.1 DER encoding. 
 
 `PUBKEY_SHA256`
diff --git a/man/certspotter.md b/man/certspotter.md
index 9abefbb..032a0fc 100644
--- a/man/certspotter.md
+++ b/man/certspotter.md
@@ -136,10 +136,10 @@ the script interface, see certspotter-script(8).
 # OPERATION
 
 certspotter continuously monitors all browser-recognized Certificate
-Transparency logs looking for certificates which are valid for any domain
-on your watch list. When certspotter detects a matching certificate, it
-emails you, executes a script, and/or writes a report to standard out,
-as described above.
+Transparency logs looking for certificates (including precertificates)
+which are valid for any domain on your watch list. When certspotter
+detects a matching certificate, it emails you, executes a script, and/or
+writes a report to standard out, as described above.
 
 certspotter also saves a copy of matching certificates in
 `$CERTSPOTTER_STATE_DIR/certs` ("~/.certspotter/certs" by default)