1 files changed, 4 insertions, 0 deletions
diff --git a/vm_opts.h b/vm_opts.h
index 4f7162d1b4..f77b01886e 100644
--- a/vm_opts.h
+++ b/vm_opts.h
@@ -49,4 +49,8 @@
 /* misc */
 #define SUPPORT_JOKE                 0
 
+#ifndef VM_COLLECT_USAGE_DETAILS
+#define VM_COLLECT_USAGE_DETAILS 0
+#endif
+
 #endif /* RUBY_VM_OPTS_H */