diff --git a/include/collection.h b/include/collection.h
index 80f423f0..f9fe4642 100644
--- a/include/collection.h
+++ b/include/collection.h
@@ -145,8 +145,6 @@ private:
     // Keep index as the last field since it is initialized in the constructor via init_index(). Add a new field before it.
     Index* index;
 
-    nlohmann::json qa;
-
     // methods
 
     std::string get_doc_id_key(const std::string & doc_id) const;
diff --git a/include/field.h b/include/field.h
index 97239a49..e8fcd1e7 100644
--- a/include/field.h
+++ b/include/field.h
@@ -55,8 +55,6 @@ namespace fields {
     static const std::string from = "from";
     static const std::string model_name = "model_name";
     static const std::string range_index = "range_index";
-    static const std::string qa = "qa";
-    static const std::string system_prompt = "system_prompt";
 
     // Some models require additional parameters to be passed to the model during indexing/querying
     // For e.g. e5-small model requires prefix "passage:" for indexing and "query:" for querying
diff --git a/src/field.cpp b/src/field.cpp
index 81169a8d..2c5199ad 100644
--- a/src/field.cpp
+++ b/src/field.cpp
@@ -2,7 +2,6 @@
 #include "field.h"
 #include "magic_enum.hpp"
 #include "text_embedder_manager.h"
-#include "conversation_model.h"
 #include <stack>
 #include <collection_manager.h>
 #include <regex>