diff --git a/tree.c b/tree.c
index 1513a14..8015a8d 100644
--- a/tree.c
+++ b/tree.c
@@ -23,7 +23,7 @@
 
 #include "sh.h"
 
-__RCSID("$MirOS: src/bin/mksh/tree.c,v 1.66 2012/11/30 20:19:16 tg Exp $");
+__RCSID("$MirOS: src/bin/mksh/tree.c,v 1.67 2012/12/04 01:10:35 tg Exp $");
 
 #define INDENT	8
 
@@ -37,6 +37,8 @@ static void iofree(struct ioword **, Area *);
 /* "foo& ; bar" and "foo |& ; bar" are invalid */
 static bool prevent_semicolon;
 
+static const char Telif_pT[] = "elif %T";
+
 /*
  * print a command tree
  */
@@ -160,7 +162,7 @@ ptree(struct op *t, int indent, struct shf *shf)
 			fptreef(shf, indent, "%;");
  process_TIF:
 			/* 5 == strlen("elif ") */
-			fptreef(shf, indent + 5 - i, "elif %T" + i, t1->left);
+			fptreef(shf, indent + 5 - i, Telif_pT + i, t1->left);
 			t1 = t1->right;
 			if (t1->left != NULL) {
 				fptreef(shf, indent, "%;");
@@ -177,7 +179,7 @@ ptree(struct op *t, int indent, struct shf *shf)
 		break;
 	case TWHILE:
 	case TUNTIL:
-		/* 6 == strlen("while"/"until") */
+		/* 6 == strlen("while "/"until ") */
 		fptreef(shf, indent + 6, "%s %T",
 		    (t->type == TWHILE) ? "while" : "until",
 		    t->left);