1 files changed, 1 insertions, 1 deletions

diff --git a/src/universe.h b/src/universe.h
index 0599302..3f61945 100644
--- a/src/universe.h
+++ b/src/universe.h
@@ -71,7 +71,7 @@ struct s_Universe
 
     // Initialized by 'init_once_LOCKED()': the deep userdata Linda object
     // used for timers (each lane will get a proxy to this)
-    volatile DeepPrelude* timer_deep;  // = NULL
+    volatile DeepPrelude* timer_deep;  // = nullptr
 
 #if HAVE_LANE_TRACKING()
     MUTEX_T tracking_cs;