diff --git a/src/backend/optimizer/prep/prepunion.c b/src/backend/optimizer/prep/prepunion.c
index 877e4c8654..91d4f77709 100644
--- a/src/backend/optimizer/prep/prepunion.c
+++ b/src/backend/optimizer/prep/prepunion.c
@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/optimizer/prep/prepunion.c,v 1.13 1997/12/24 06:06:07 momjian Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/optimizer/prep/prepunion.c,v 1.14 1997/12/26 06:02:26 vadim Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -31,7 +31,7 @@
 #include "optimizer/prep.h"
 #include "optimizer/plancat.h"
 #include "optimizer/planner.h"
-#include "optimizer/prep.h"
+#include "optimizer/planmain.h"
 
 static List *plan_union_query(List *relids, Index rt_index,
 				 RangeTblEntry *rt_entry, Query *parse, UnionFlag flag,
@@ -203,6 +203,8 @@ plan_union_queries(Index rt_index,
 			/* do nothing */
 			break;
 	}
+	
+	return ((Append*)NULL);		/* to make gcc happy */
 }