diff --git a/src/bin/pg_basebackup/pg_recvlogical.c b/src/bin/pg_basebackup/pg_recvlogical.c
index b568a7827a..73625256ac 100644
--- a/src/bin/pg_basebackup/pg_recvlogical.c
+++ b/src/bin/pg_basebackup/pg_recvlogical.c
@@ -853,7 +853,7 @@ main(int argc, char **argv)
 
 	/*
 	 * Obtain a connection to server. This is not really necessary but it
-	 * helps to get more precise error messages about authentification,
+	 * helps to get more precise error messages about authentication,
 	 * required GUC parameters and such.
 	 */
 	conn = GetConnection();