diff --git a/docs/20_Checks/check_couchdb.md b/docs/20_Checks/check_couchdb.md
index 43b05a48eff1ab533db537661e6b0875157c8ca4..4c6ef97f441eebe2810e09a54cbf76d47ff2d430 100644
--- a/docs/20_Checks/check_couchdb.md
+++ b/docs/20_Checks/check_couchdb.md
@@ -18,7 +18,7 @@ Check couchdb status.
 ______________________________________________________________________
 
 CHECK_COUCHDB
-v0.4
+v0.5
 
 (c) Institute for Medical Education - University of Bern
 Licence: GNU GPL 3
@@ -32,16 +32,18 @@ SYNTAX:
 check_couchdb [-h] [-t FILE] -m MODE
 
 OPTIONS:
-    -h or --help   show this help.
-    -c CFGFILE     set a custom config file
-                   default: /etc/icingaclient/.couchdb
-    -m MODE        test a value; for debugging purposes the full json 
-                   response will be shown
-
-    MODE is one of
-      up           show general couchdb status
-      replication  show last replication status
-      pending      show count of pending updates for nodes, dbs and users
+  -h or --help    show this help.
+  -c CFGFILE      set a custom config file
+                  default: /etc/icingaclient/.couchdb
+  -m MODE         test a value; for debugging purposes the full json 
+                  response will be shown
+
+  MODE is one of
+  up              show general couchdb status
+  replication     show last replication status
+  pending         show count of pending updates for nodes, dbs and users
+  open_databases  show number of open databases
+  open_os_files   show number of file descriptors CouchDB has open
 
 EXAMPLE:
 check_couchdb -m up
@@ -164,3 +166,41 @@ Reponse: of /_up
   }
 }
 ```
+
+### open_databases
+
+Show number of open databases
+
+This check sends performance data.
+
+``check_couchdb -m open_databases`` returns
+
+```txt
+OK: Couchdb :: open_databases = 0
+Reponse: of /_node/_local/_stats/couchdb/open_databases
+{
+  "value": 0,
+  "type": "counter",
+  "desc": "number of open databases"
+}
+ |opendatabases=0;; 
+```
+
+### open_os_files
+
+Show number of file descriptors CouchDB has open
+
+This check sends performance data.
+
+``check_couchdb -m open_os_files`` returns
+
+```txt
+OK: Couchdb :: open_os_files = 0
+Reponse: of /_node/_local/_stats/couchdb/open_os_files
+{
+  "value": 0,
+  "type": "counter",
+  "desc": "number of file descriptors CouchDB has open"
+}
+ |openosfiles=0;; 
+```