diff --git a/postgres/salt-and-hash-a-password-with-pgcrypto.md b/postgres/salt-and-hash-a-password-with-pgcrypto.md
index c3e6291..0757214 100644
--- a/postgres/salt-and-hash-a-password-with-pgcrypto.md
+++ b/postgres/salt-and-hash-a-password-with-pgcrypto.md
@@ -9,7 +9,7 @@ user password and later compare it to plain-text passwords for
 authentication purposes.
 
 ```sql
-create extensions pgcrypto;
+create extension pgcrypto;
 
 select crypt('pa$$w0rd', gen_salt('bf'));
                             crypt