diff --git a/src/backend/tcop/dest.c b/src/backend/tcop/dest.c
index ac0dc5e7c2..4488f128e6 100644
--- a/src/backend/tcop/dest.c
+++ b/src/backend/tcop/dest.c
@@ -8,7 +8,7 @@
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/tcop/dest.c,v 1.76 2010/01/02 16:57:52 momjian Exp $
+ *	  $PostgreSQL: pgsql/src/backend/tcop/dest.c,v 1.77 2010/01/30 20:09:53 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -142,7 +142,11 @@ EndCommand(const char *commandTag, CommandDest dest)
 	{
 		case DestRemote:
 		case DestRemoteExecute:
-			pq_puttextmessage('C', commandTag);
+			/*
+			 * We assume the commandTag is plain ASCII and therefore
+			 * requires no encoding conversion.
+			 */
+			pq_putmessage('C', commandTag, strlen(commandTag) + 1);
 			break;
 
 		case DestNone:
@@ -183,7 +187,7 @@ NullCommand(CommandDest dest)
 			if (PG_PROTOCOL_MAJOR(FrontendProtocol) >= 3)
 				pq_putemptymessage('I');
 			else
-				pq_puttextmessage('I', "");
+				pq_putmessage('I', "", 1);
 			break;
 
 		case DestNone: