diff --git a/eval.c b/eval.c
index 1320c4dfa2..55dd8f43b7 100644
--- a/eval.c
+++ b/eval.c
@@ -5881,7 +5881,6 @@ backtrace(lev)
     NODE *n;
 
     ary = rb_ary_new();
-    fprintf(stderr, "<ary=%p(0x%x)\n", ary, BUILTIN_TYPE(ary));
     if (frame->last_func == ID_ALLOCATOR) {
 	frame = frame->prev;
     }