diff --git a/git-send-email.perl b/git-send-email.perl
index 6dab3bf6a7..0063606b55 100755
--- a/git-send-email.perl
+++ b/git-send-email.perl
@@ -212,7 +212,7 @@ sub do_edit {
     "smtpserverport" => \$smtp_server_port,
     "smtpuser" => \$smtp_authuser,
     "smtppass" => \$smtp_authpass,
-	"smtpdomain" => \$smtp_domain,
+    "smtpdomain" => \$smtp_domain,
     "to" => \@to,
     "cc" => \@initial_cc,
     "cccmd" => \$cc_cmd,