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-rw-r--r--ace/Future.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/ace/Future.h b/ace/Future.h
index 7d0aa301a8b..839adc35df9 100644
--- a/ace/Future.h
+++ b/ace/Future.h
@@ -16,7 +16,7 @@
//
// ============================================================================
-#if !defined (ACE_FUTURE_H)
+#ifndef ACE_FUTURE_H
#define ACE_FUTURE_H
#include "ace/Synch.h"