diff --git a/ghc/rts/Exception.hc b/ghc/rts/Exception.hc
index 10d380e96c5b23f7b656952a5ffffe08d77a8485..f19f212d0305c2fe0dea9ce192b9fa5163174b8f 100644
--- a/ghc/rts/Exception.hc
+++ b/ghc/rts/Exception.hc
@@ -1,5 +1,5 @@
 /* -----------------------------------------------------------------------------
- * $Id: Exception.hc,v 1.1 1999/12/01 14:34:38 simonmar Exp $
+ * $Id: Exception.hc,v 1.2 1999/12/02 09:52:41 simonmar Exp $
  *
  * (c) The GHC Team, 1998-1999
  *
@@ -13,6 +13,7 @@
 #include "StgRun.h"
 #include "Storage.h"
 #include "RtsUtils.h"
+#include "RtsFlags.h"
 
 /* -----------------------------------------------------------------------------
    Exception Primitives