diff --git a/src/closures.c b/src/closures.c
index 01f9950cd0..1dfd375cff 100644
--- a/src/closures.c
+++ b/src/closures.c
@@ -329,7 +329,7 @@
     table->next->prev = table->prev;
 
   /* Deallocate pages */
-  vm_deallocate (mach_task_self (), table->config_page, PAGE_MAX_SIZE * 2);
+  vm_deallocate (mach_task_self (), table->config_page, FFI_TRAMPOLINE_ALLOCATION_PAGE_COUNT * PAGE_MAX_SIZE);
 
   /* Deallocate free list */
   free (table->free_list_pool);