diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 50a02a62a5..fb8d0bca86 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -111,7 +111,7 @@
 
 # - Free Space Map -
 
-#max_fsm_pages = 1638400		# min max_fsm_relations*16, 6 bytes each
+#max_fsm_pages = 204800			# min max_fsm_relations*16, 6 bytes each
 					# (change requires restart)
 #max_fsm_relations = 1000		# min 100, ~70 bytes each
 					# (change requires restart)
diff --git a/src/bin/initdb/initdb.c b/src/bin/initdb/initdb.c
index ab5c3f44d6..0d3f092080 100644
--- a/src/bin/initdb/initdb.c
+++ b/src/bin/initdb/initdb.c
@@ -42,7 +42,7 @@
  * Portions Copyright (c) 1994, Regents of the University of California
  * Portions taken from FreeBSD.
  *
- * $PostgreSQL: pgsql/src/bin/initdb/initdb.c,v 1.128 2007/01/06 19:40:00 momjian Exp $
+ * $PostgreSQL: pgsql/src/bin/initdb/initdb.c,v 1.129 2007/01/20 17:04:58 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -1251,7 +1251,7 @@ setup_config(void)
 	conflines = replace_token(conflines, "#shared_buffers = 32MB", repltok);
 
 	snprintf(repltok, sizeof(repltok), "max_fsm_pages = %d", n_fsm_pages);
-	conflines = replace_token(conflines, "#max_fsm_pages = 1638400", repltok);
+	conflines = replace_token(conflines, "#max_fsm_pages = 204800", repltok);
 
 #if DEF_PGPORT != 5432
 	snprintf(repltok, sizeof(repltok), "#port = %d", DEF_PGPORT);