diff --git a/src/main/java/org/gcube/portlets/user/shareupdates/client/view/ShareUpdateForm.java b/src/main/java/org/gcube/portlets/user/shareupdates/client/view/ShareUpdateForm.java
index f506687..ae1393b 100644
--- a/src/main/java/org/gcube/portlets/user/shareupdates/client/view/ShareUpdateForm.java
+++ b/src/main/java/org/gcube/portlets/user/shareupdates/client/view/ShareUpdateForm.java
@@ -799,7 +799,7 @@ public class ShareUpdateForm extends Composite {
 		String [] parts = textToCheck.split("\\s");
 		// check the length of tokens   
 		for( String item : parts ) {
-			if (! item.startsWith("http")) { //url are accepted as they can be trunked
+			if (!item.startsWith("http") && !item.startsWith("ftp")) { //url are accepted as they can be trunked
 				if (item.length() > 50) {
 					return false;
 				}