1 files changed, 2 insertions, 0 deletions
diff --git a/vm_opts.h b/vm_opts.h
index d4e2ed786e..3df9ce837b 100644
--- a/vm_opts.h
+++ b/vm_opts.h
@@ -61,7 +61,9 @@
 #define OPT_STACK_CACHING            0
 
 /* misc */
+#ifndef OPT_SUPPORT_JOKE
 #define OPT_SUPPORT_JOKE             0
+#endif
 
 #ifndef VM_COLLECT_USAGE_DETAILS
 #define VM_COLLECT_USAGE_DETAILS     0