ext/oj/mimic_json.c in oj-3.11.0 vs ext/oj/mimic_json.c in oj-3.11.1

@@ -839,9 +839,10 @@
     if (!rb_const_defined_at(generator, rb_intern("State"))) {
 	rb_require("oj/state");
     }
     // Pull in the JSON::State mimic file.
     state_class = rb_const_get_at(generator, rb_intern("State"));
+    rb_gc_register_mark_object(state_class);
 
     symbolize_names_sym = ID2SYM(rb_intern("symbolize_names"));	rb_gc_register_address(&symbolize_names_sym);
 }
 
 /* Document-module: JSON