diff --git a/src/main/java/org/gcube/spatial/data/sdi/model/ServiceConstants.java b/src/main/java/org/gcube/spatial/data/sdi/model/ServiceConstants.java
index b6b8714..8a59269 100644
--- a/src/main/java/org/gcube/spatial/data/sdi/model/ServiceConstants.java
+++ b/src/main/java/org/gcube/spatial/data/sdi/model/ServiceConstants.java
@@ -15,6 +15,7 @@ public class ServiceConstants {
 		public static final String LIST_METHOD="list";
 		public static final String VALIDATE_PARAMETER="validate";
 		public static final String PUBLIC_PARAMETER="public";
+		public static final String STYLESHEET_PARAMETER="stylesheet";
 		public static final String UPLOADED_FILE_PARAMETER="theMeta";
 		public static final String METADATA_ENRICHMENTS_PARAMETER="metadataEnrichments";
 		// Defaults