diff --git a/src/main/java/org/gcube/gcat/rest/License.java b/src/main/java/org/gcube/gcat/rest/License.java
index 92fb9df..857c832 100644
--- a/src/main/java/org/gcube/gcat/rest/License.java
+++ b/src/main/java/org/gcube/gcat/rest/License.java
@@ -43,7 +43,7 @@ public class License extends REST<CKANLicense> implements org.gcube.gcat.api.int
 	public String list() throws WebServiceException {
 		String ret = super.list(-1, -1);
 		String accept = httpHeaders.getHeaderString("Accept");
-		if(accept.contains(GCatConstants.APPLICATION_JSON_API)) {
+		if(accept.startsWith(GCatConstants.APPLICATION_JSON_API)) {
 			ObjectMapper objectMapper = new ObjectMapper();
 			ObjectNode objectNode = objectMapper.createObjectNode();
 			try {