diff --git a/src/main/java/org/gcube/portal/databook/server/CassandraClusterConnection.java b/src/main/java/org/gcube/portal/databook/server/CassandraClusterConnection.java
index 663c933..b44b0f0 100644
--- a/src/main/java/org/gcube/portal/databook/server/CassandraClusterConnection.java
+++ b/src/main/java/org/gcube/portal/databook/server/CassandraClusterConnection.java
@@ -254,7 +254,7 @@ public class CassandraClusterConnection {
 		/**
 		 * define Attachments CF with FeedId as secondary index
 		 */
-		ColumnFamilyDefinition cfDefAttachments = getStaticCFDef(DBCassandraAstyanaxImpl.ATTACHMENTS, "Feedid");
+		ColumnFamilyDefinition cfDefAttachments = getStaticCFDef(DBCassandraAstyanaxImpl.ATTACHMENTS, "feedId");
 
 
 		//get dynamic column families, act as auxiliary indexes
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 95603b9..a77b452 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)
diff --git a/src/main/java/org/gcube/portal/databook/server/DatabookCassandraTest.java b/src/main/java/org/gcube/portal/databook/server/DatabookCassandraTest.java
index 5ef1f80..33df1eb 100644
--- a/src/main/java/org/gcube/portal/databook/server/DatabookCassandraTest.java
+++ b/src/main/java/org/gcube/portal/databook/server/DatabookCassandraTest.java
@@ -1,4 +1,6 @@
 package org.gcube.portal.databook.server;
+import java.util.UUID;
+
 import org.junit.AfterClass;
 import org.junit.BeforeClass;
 import org.junit.Test;
@@ -297,32 +299,32 @@ public class DatabookCassandraTest {
 	//	}
 
 
-	//	/**
-	//	 * use exclusively to add a new (Static) CF to a keyspace with a secondary index
-	//	 */
-	//	@Test
-	//	public void addAttachmentStaticColumnFamilies() {
-	//		ColumnFamily<String, String> CF_ATTACHMENTS = ColumnFamily.newColumnFamily(DBCassandraAstyanaxImpl.ATTACHMENTS, StringSerializer.get(), StringSerializer.get());
-	//
-	//		try {
-	//			String colNameToIndex = "feedId";
-	//			new CassandraClusterConnection(false).getKeyspace().createColumnFamily(CF_ATTACHMENTS, ImmutableMap.<String, Object>builder()
-	//							.put("column_metadata", ImmutableMap.<String, Object>builder()
-	//								.put(colNameToIndex, ImmutableMap.<String, Object>builder()
-	//									.put("validation_class", "UTF8Type")
-	//									.put("index_name",       "FeedIndex_"+UUID.randomUUID().toString().substring(0,5))
-	//									.put("index_type",       "KEYS")
-	//									.build())
-	//								.build())
-	//							.build());
-	//
-	//
-	//		} catch (ConnectionException e) {
-	//			e.printStackTrace();
-	//		}
-	//		System.out.println("addStaticColumnFamily END");
-	//	}
-
+//		/**
+//		 * use exclusively to add a new (Static) CF to a keyspace with a secondary index
+//		 */
+//		@Test
+//		public void addAttachmentStaticColumnFamilies() {
+//			ColumnFamily<String, String> CF_ATTACHMENTS = ColumnFamily.newColumnFamily(DBCassandraAstyanaxImpl.ATTACHMENTS, StringSerializer.get(), StringSerializer.get());
+//	
+//			try {
+//				String colNameToIndex = "feedId";
+//				new CassandraClusterConnection(false).getKeyspace().createColumnFamily(CF_ATTACHMENTS, ImmutableMap.<String, Object>builder()
+//								.put("column_metadata", ImmutableMap.<String, Object>builder()
+//									.put(colNameToIndex, ImmutableMap.<String, Object>builder()
+//										.put("validation_class", "UTF8Type")
+//										.put("index_name",       "FeedIndex_"+UUID.randomUUID().toString().substring(0,5))
+//										.put("index_type",       "KEYS")
+//										.build())
+//									.build())
+//								.build());
+//	
+//	
+//			} catch (ConnectionException e) {
+//				e.printStackTrace();
+//			}
+//			System.out.println("addStaticColumnFamily END");
+//		}
+//
 
 //			/**
 //			 * use exclusively to add a new (Dynamic) CF to a keyspace