diff --git a/docs/domains_txt.md b/docs/domains_txt.md
index dcdbe417..0e883abc 100644
--- a/docs/domains_txt.md
+++ b/docs/domains_txt.md
@@ -52,10 +52,10 @@ the value
 KEY_ALGO="rsa"
 ```
 
-or respectively
+or respectively specifying curve name for ECDSA
 
 ```
-KEY_ALGO="ecdsa"
+KEY_ALGO="secp384r1"
 ```
 
 ### Wildcards