diff --git a/src/main/java/org/gcube/socialnetworking/socialtoken/ReplaceableToken.java b/src/main/java/org/gcube/socialnetworking/socialtoken/ReplaceableToken.java
index 7ac76bb..5ced686 100644
--- a/src/main/java/org/gcube/socialnetworking/socialtoken/ReplaceableToken.java
+++ b/src/main/java/org/gcube/socialnetworking/socialtoken/ReplaceableToken.java
@@ -36,7 +36,7 @@ public class ReplaceableToken extends Token {
 			stringBuilder.append(key);
 			stringBuilder.append("=\"");
 			stringBuilder.append(attributes.get(key));
-			stringBuilder.append("\" ");
+			stringBuilder.append("\"");
 		}
 		stringBuilder.append(">");
 		stringBuilder.append(linkValue);