diff --git a/src/include/optimizer/cost.h b/src/include/optimizer/cost.h
index 0feb56dd7c926833023cf2de84126e82c669fced..45c83191a2691ff2e34b74ccb8d702cbb6ca8399 100644
--- a/src/include/optimizer/cost.h
+++ b/src/include/optimizer/cost.h
@@ -7,7 +7,7 @@
  * Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $Id: cost.h,v 1.52 2003/01/28 22:13:41 tgl Exp $
+ * $Id: cost.h,v 1.53 2003/06/11 15:01:15 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -37,7 +37,7 @@
 extern double effective_cache_size;
 extern double random_page_cost;
 extern double cpu_tuple_cost;
-extern double cpu_index_tuple_cost;
+extern DLLIMPORT double cpu_index_tuple_cost;
 extern double cpu_operator_cost;
 extern Cost disable_cost;
 extern bool enable_seqscan;