diff --git a/presto-cassandra/src/main/java/com/facebook/presto/cassandra/NativeCassandraSession.java b/presto-cassandra/src/main/java/com/facebook/presto/cassandra/NativeCassandraSession.java
index 08cacc683a3f..8235044b5b97 100644
--- a/presto-cassandra/src/main/java/com/facebook/presto/cassandra/NativeCassandraSession.java
+++ b/presto-cassandra/src/main/java/com/facebook/presto/cassandra/NativeCassandraSession.java
@@ -494,7 +494,9 @@ private List<CassandraPartition> buildPartitionsFromFilterPrefixes(CassandraTabl
                 CassandraType cassandraType = columnHandle.getCassandraType();
 
                 switch (cassandraType) {
+                    case ASCII:
                     case TEXT:
+                    case VARCHAR:
                         Slice slice = (Slice) value;
                         if (isComposite) {
                             buffer.putShort((short) slice.length());