diff --git a/config.default.yaml b/config.default.yaml
index d2bf6159..4447a88f 100755
--- a/config.default.yaml
+++ b/config.default.yaml
@@ -26,7 +26,7 @@ clustering:
 snapshots:
   start: "2013-01-01"
   end: "2014-01-01"
-  closed: 'left' # end is not inclusive
+  inclusive: 'left' # include start, not end
 
 enable:
   prepare_links_p_nom: false
diff --git a/config.tutorial.yaml b/config.tutorial.yaml
index ea624727..ab3e3d92 100755
--- a/config.tutorial.yaml
+++ b/config.tutorial.yaml
@@ -26,7 +26,7 @@ clustering:
 snapshots:
   start: "2013-03-01"
   end: "2013-04-01"
-  closed: 'left' # end is not inclusive
+  inclusive: 'left' # include start, not end
 
 enable:
   prepare_links_p_nom: false
diff --git a/test/config.test1.yaml b/test/config.test1.yaml
index 2986037b..545f04bc 100755
--- a/test/config.test1.yaml
+++ b/test/config.test1.yaml
@@ -25,7 +25,7 @@ clustering:
 snapshots:
   start: "2013-03-01"
   end: "2013-03-08"
-  closed: 'left' # end is not inclusive
+  inclusive: 'left' # include start, not end
 
 enable:
   prepare_links_p_nom: false