diff --git a/src/main/java/com/eprosima/idl/parser/typecode/StringTypeCode.java b/src/main/java/com/eprosima/idl/parser/typecode/StringTypeCode.java
index a0c0540c..df420014 100644
--- a/src/main/java/com/eprosima/idl/parser/typecode/StringTypeCode.java
+++ b/src/main/java/com/eprosima/idl/parser/typecode/StringTypeCode.java
@@ -55,7 +55,9 @@ public String getTypeIdentifier()
     @Override
     public String getCppTypename()
     {
-        return getCppTypenameFromStringTemplate().toString();
+        StringTemplate st = getCppTypenameFromStringTemplate();
+        st.setAttribute("max_size", m_maxsize);
+        return st.toString();
     }
 
     @Override
diff --git a/src/main/resources/com/eprosima/idl/templates/Types.stg b/src/main/resources/com/eprosima/idl/templates/Types.stg
index cdd48202..7e0d0924 100644
--- a/src/main/resources/com/eprosima/idl/templates/Types.stg
+++ b/src/main/resources/com/eprosima/idl/templates/Types.stg
@@ -40,9 +40,9 @@ type_7() ::= <<bool>>
 
 type_9() ::= <<uint8_t>>
 
-type_d() ::= <<std::string>>
+type_d(max_size) ::= <<$if(max_size)$eprosima::fastrtps::fixed_string<$max_size$>$else$std::string$endif$>>
 
-type_15() ::= <<std::wstring>>
+type_15(max_size) ::= <<std::wstring>>
 
 type_19(key, value, maxsize, empty) ::= <<std::map<$key$, $value$>$empty$>>