Minor fixup to cert generation code

diff --git a/src/libtdeldap.cpp b/src/libtdeldap.cpp
index 4d3cdc9..9ae53ed 100644
--- a/src/libtdeldap.cpp
+++ b/src/libtdeldap.cpp
@@ -5043,7 +5043,7 @@
 		stream << "\n";
 		if (autoLoginPIN != TQString::null) {
 			stream << "[tde_autopin_login_data]" << "\n"; 
-			stream << TQString("realm = EXP:0,GeneralString:%1").arg(autoLoginPIN) << "\n";
+			stream << TQString("pin = EXP:0,GeneralString:%1").arg(autoLoginPIN) << "\n";
 			stream << "\n";
 		}
 		stream << "[pkinit_client_cert_alt_names]" << "\n";