1 files changed, 3 insertions, 1 deletions
diff --git a/includes/rts/Flags.h b/includes/rts/Flags.h
index 42ca671768..46f1eb893b 100644
--- a/includes/rts/Flags.h
+++ b/includes/rts/Flags.h
@@ -127,8 +127,10 @@ struct PROFILING_FLAGS {
 struct TRACE_FLAGS {
     int tracing;
     rtsBool timestamp;      /* show timestamp in stderr output */
-
     rtsBool scheduler;      /* trace scheduler events */
+    rtsBool gc;             /* trace GC events */
+    rtsBool sparks_sampled; /* trace spark events by a sampled method */
+    rtsBool sparks_full;    /* trace spark events 100% accurately */
 };
 
 struct CONCURRENT_FLAGS {