diff --git a/src/ol/format/XSD.js b/src/ol/format/XSD.js
index 94ed677f86..cf51d857be 100644
--- a/src/ol/format/XSD.js
+++ b/src/ol/format/XSD.js
@@ -6,13 +6,6 @@ import _ol_string_ from '../string.js';
 var XSD = {};
 
 
-/**
- * @const
- * @type {string}
- */
-XSD.NAMESPACE_URI = 'http://www.w3.org/2001/XMLSchema';
-
-
 /**
  * @param {Node} node Node.
  * @return {boolean|undefined} Boolean.