diff --git a/plugins/inputs/postgresql_extensible/README.md b/plugins/inputs/postgresql_extensible/README.md
index bc5a549c9..1c63afe68 100644
--- a/plugins/inputs/postgresql_extensible/README.md
+++ b/plugins/inputs/postgresql_extensible/README.md
@@ -30,6 +30,8 @@ For now only two queries are specified and it's up to you to add more; some per
   # New queries can be added, if the withdbname is set to true and there is no databases defined
   # in the 'databases field', the sql query is ended by a 'is not null' in order to make the query
   # succeed.
+  # Be careful that the sqlquery must contain the where clause with a part of the filtering, the plugin will
+  # add a 'IN (dbname list)' clause if the withdbname is set to true
   # the tagvalue field is used to define custom tags (separated by comas)
   #
   # Structure :
@@ -51,5 +53,3 @@ For now only two queries are specified and it's up to you to add more; some per
 
 
 The system can be easily extended using homemade metrics collection tools or using postgreql extensions (pg_stat_statement, pg_proctab, powa...)
-
-
diff --git a/plugins/inputs/postgresql_extensible/postgresql_extensible.go b/plugins/inputs/postgresql_extensible/postgresql_extensible.go
index bf060506d..22c504a50 100644
--- a/plugins/inputs/postgresql_extensible/postgresql_extensible.go
+++ b/plugins/inputs/postgresql_extensible/postgresql_extensible.go
@@ -67,7 +67,7 @@ var sampleConfig = `
   [[inputs.postgresql_extensible.query]]
     sqlquery="SELECT * FROM pg_stat_database where datname"
     version=901
-    withdbname=true
+    withdbname=false
     tagvalue=""
   [[inputs.postgresql_extensible.query]]
     sqlquery="SELECT * FROM pg_stat_bgwriter"