diff --git a/ChangeLog b/ChangeLog
index 7c345d5701..1013eb4464 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Mon Aug 16 20:26:13 2010  Narihiro Nakamura  <narihiro@netlab.jp>
+
+	* gc.c (gc_profile_result): Index begins with 1.
+
 Mon Aug 16 20:21:17 2010  Narihiro Nakamura  <authornari@gmail.com>
 
 	* gc.c (gc_profile_result): use size_t. based on patches from
diff --git a/gc.c b/gc.c
index af6d8929f0..9bde487a8c 100644
--- a/gc.c
+++ b/gc.c
@@ -3275,7 +3275,7 @@ gc_profile_result(void)
     record = gc_profile_record_get();
     if (objspace->profile.run && objspace->profile.count) {
 	result = rb_sprintf("GC %d invokes.\n", NUM2INT(gc_count(0)));
-        index = 0;
+        index = 1;
 	rb_str_cat2(result, "Index    Invoke Time(sec)       Use Size(byte)     Total Size(byte)         Total Object                    GC Time(ms)\n");
 	for (i = 0; i < (int)RARRAY_LEN(record); i++) {
 	    VALUE r = RARRAY_PTR(record)[i];
@@ -3296,7 +3296,7 @@ gc_profile_result(void)
 	rb_str_cat2(result, "\n\n");
 	rb_str_cat2(result, "More detail.\n");
 	rb_str_cat2(result, "Index Allocate Increase    Allocate Limit  Use Slot  Have Finalize             Mark Time(ms)            Sweep Time(ms)\n");
-        index = 0;
+        index = 1;
 	for (i = 0; i < (int)RARRAY_LEN(record); i++) {
 	    VALUE r = RARRAY_PTR(record)[i];
 	    rb_str_catf(result, "%5d %17"PRIuSIZE" %17"PRIuSIZE" %9"PRIuSIZE" %14s %25.20f %25.20f\n",