diff --git a/src/backend/commands/analyze.c b/src/backend/commands/analyze.c
index f558458d778..700137ec247 100644
--- a/src/backend/commands/analyze.c
+++ b/src/backend/commands/analyze.c
@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/commands/analyze.c,v 1.105 2007/04/18 16:44:17 alvherre Exp $
+ *	  $PostgreSQL: pgsql/src/backend/commands/analyze.c,v 1.106 2007/04/19 16:26:44 alvherre Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -468,7 +468,7 @@ analyze_rel(Oid relid, VacuumStmt *vacstmt)
 	/* Log the action if appropriate */
 	if (IsAutoVacuumWorkerProcess() && Log_autovacuum >= 0)
 	{
-		long	diff;
+		long	diff = 0L;
 
 		if (Log_autovacuum > 0)
 		{
diff --git a/src/backend/commands/vacuumlazy.c b/src/backend/commands/vacuumlazy.c
index 4e4f6373a46..0b04cfb7b2f 100644
--- a/src/backend/commands/vacuumlazy.c
+++ b/src/backend/commands/vacuumlazy.c
@@ -36,7 +36,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/commands/vacuumlazy.c,v 1.86 2007/04/18 16:44:18 alvherre Exp $
+ *	  $PostgreSQL: pgsql/src/backend/commands/vacuumlazy.c,v 1.87 2007/04/19 16:26:44 alvherre Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -217,7 +217,7 @@ lazy_vacuum_rel(Relation onerel, VacuumStmt *vacstmt)
 	/* and log the action if appropriate */
 	if (IsAutoVacuumWorkerProcess() && Log_autovacuum >= 0)
 	{
-		long	diff;
+		long	diff = 0L;
 
 		if (Log_autovacuum > 0)
 		{