diff --git a/include/cyclone/types.h b/include/cyclone/types.h
index 5e81145f..f59f73e6 100644
--- a/include/cyclone/types.h
+++ b/include/cyclone/types.h
@@ -295,7 +295,7 @@ struct gc_thread_data_t {
   // Exception handler stack
   object exception_handler_stack;
   // Parameter object data
-  object *param_objs;
+  object param_objs;
 };
 
 /* GC prototypes */