diff --git a/src/main/java/org/gcube/portal/databook/server/DBCassandraAstyanaxImpl.java b/src/main/java/org/gcube/portal/databook/server/DBCassandraAstyanaxImpl.java
index a77b452..95603b9 100644
--- a/src/main/java/org/gcube/portal/databook/server/DBCassandraAstyanaxImpl.java
+++ b/src/main/java/org/gcube/portal/databook/server/DBCassandraAstyanaxImpl.java
@@ -2167,7 +2167,7 @@ public final class DBCassandraAstyanaxImpl implements DatabookStore {
 		} 
 		List<Attachment> toReturn = new ArrayList<Attachment>();
 
-		PreparedIndexExpression<String, String> clause = cf_Attachments.newIndexClause().whereColumn("feedId").equals().value(feedId);
+		PreparedIndexExpression<String, String> clause = cf_Attachments.newIndexClause().whereColumn("Feedid").equals().value(feedId);
 		OperationResult<Rows<String, String>> result;
 		try {
 			result = conn.getKeyspace().prepareQuery(cf_Attachments)