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-rw-r--r--src/engine/e_if_other.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/engine/e_if_other.h b/src/engine/e_if_other.h
index 66e2d3a8..e02a7fd1 100644
--- a/src/engine/e_if_other.h
+++ b/src/engine/e_if_other.h
@@ -284,7 +284,8 @@ void snap_input(void *data, int size);
 /* message packing */
 enum
 {
-	MSGFLAG_VITAL=1
+	MSGFLAG_VITAL=1,
+	MSGFLAG_FLUSH=2
 };
 
 /* message sending */