diff --git a/src/main/java/net/openhft/chronicle/hash/serialization/internal/CharSequenceReader.java b/src/main/java/net/openhft/chronicle/hash/serialization/internal/CharSequenceReader.java
index 9d110aacc..60eb7b516 100644
--- a/src/main/java/net/openhft/chronicle/hash/serialization/internal/CharSequenceReader.java
+++ b/src/main/java/net/openhft/chronicle/hash/serialization/internal/CharSequenceReader.java
@@ -57,11 +57,11 @@ public final class CharSequenceReader<S extends CharSequence>
             new CharSequenceReader(NoInterningIdentity.INSTANCE, NoInterningIdentity.INSTANCE);
 
     public static CharSequenceReader of() {
-        return DEFAULT_READER;
+        return STRING_READER;
     }
 
-    public static CharSequenceReader<String> ofString() {
-        return STRING_READER;
+    public static CharSequenceReader<String> ofStringBuilder() {
+        return DEFAULT_READER;
     }
 
     public static <S extends CharSequence, I extends CharSequenceInterner<S> & Serializable>
diff --git a/src/main/java/net/openhft/chronicle/map/SerializationBuilder.java b/src/main/java/net/openhft/chronicle/map/SerializationBuilder.java
index 06603eca6..a94e29540 100644
--- a/src/main/java/net/openhft/chronicle/map/SerializationBuilder.java
+++ b/src/main/java/net/openhft/chronicle/map/SerializationBuilder.java
@@ -127,11 +127,11 @@ final class SerializationBuilder<E> implements Cloneable, Serializable {
             sizeMarshaller(byteableMarshaller);
             reader(byteableMarshaller);
             interop(byteableMarshaller);
-        } else if (eClass == CharSequence.class || eClass == StringBuilder.class) {
+        } else if (eClass == CharSequence.class || eClass == String.class) {
             reader((BytesReader<E>) CharSequenceReader.of());
             writer((BytesWriter<E>) CharSequenceWriter.instance());
-        } else if (eClass == String.class) {
-            reader((BytesReader<E>) CharSequenceReader.ofString());
+        } else if (eClass == StringBuilder.class) {
+            reader((BytesReader<E>) CharSequenceReader.ofStringBuilder());
             writer((BytesWriter<E>) CharSequenceWriter.instance());
         } else if (eClass == Void.class) {
             sizeMarshaller(VoidMarshaller.INSTANCE);