diff --git a/src/main.c b/src/main.c
index a8c38895..c21546ee 100644
--- a/src/main.c
+++ b/src/main.c
@@ -34,11 +34,14 @@ main()
   int char_index;
   pic_value v;
   struct pic_proc *proc;
+  int ai;
 
   pic = pic_open();
 
   //test_object_creation(pic);
 
+  ai = pic_gc_arena_preserve(pic);
+
   while (1) {
     printf("> ");
 
@@ -63,6 +66,8 @@ main()
     pic_debug(pic, v);
 
     printf("\n");
+
+    pic_gc_arena_restore(pic, ai);
   }
 
  eof: