1 files changed, 2 insertions, 2 deletions
diff --git a/string.c b/string.c
index a7e6082f6c..73657fc0d4 100644
--- a/string.c
+++ b/string.c
@@ -1053,8 +1053,8 @@ rb_str_slice_bang(argc, argv, str)
 	buf[i] = argv[i];
     }
     buf[i] = rb_str_new(0,0);
-    result = rb_str_aref_m(2, buf, str);
-    rb_str_aset_m(3, buf, str);
+    result = rb_str_aref_m(argc, buf, str);
+    rb_str_aset_m(argc+1, buf, str);
     return result;
 }