diff --git a/ruby.c b/ruby.c
index bf161f6df7..22cfeace1e 100644
--- a/ruby.c
+++ b/ruby.c
@@ -233,8 +233,9 @@ cmdline_options_init(ruby_cmdline_options_t *opt)
     opt->features.set = DEFAULT_FEATURES;
 #ifdef MJIT_FORCE_ENABLE /* to use with: ./configure cppflags="-DMJIT_FORCE_ENABLE" */
     opt->features.set |= FEATURE_BIT(jit);
-#endif
+#else
     opt->features.set |= FEATURE_BIT(yjit);
+#endif
     return opt;
 }