1 files changed, 3 insertions, 3 deletions
diff --git a/ruby.c b/ruby.c
index 2571edafc9..f14d4f1ee0 100644
--- a/ruby.c
+++ b/ruby.c
@@ -1770,9 +1770,9 @@ ruby_opt_init(ruby_cmdline_options_t *opt)
                            "environment variables RUBY_GC_HEAP_%d_INIT_SLOTS");
     }
 
-    if (getenv("RUBY_FREE_ON_EXIT")) {
-        rb_warn("Free on exit is experimental and may be unstable");
-        rb_free_on_exit = true;
+    if (getenv("RUBY_FREE_AT_EXIT")) {
+        rb_warn("Free at exit is experimental and may be unstable");
+        rb_free_at_exit = true;
     }
 
 #if USE_RJIT