diff --git a/compiler/include/concretelang/ClientLib/PublicArguments.h b/compiler/include/concretelang/ClientLib/PublicArguments.h
index 490987f3b..855d416ea 100644
--- a/compiler/include/concretelang/ClientLib/PublicArguments.h
+++ b/compiler/include/concretelang/ClientLib/PublicArguments.h
@@ -44,7 +44,7 @@ public:
   PublicArguments(PublicArguments &other) = delete;
   PublicArguments(PublicArguments &&other) = delete;
 
-  static outcome::checked<std::shared_ptr<PublicArguments>, StringError>
+  static outcome::checked<std::unique_ptr<PublicArguments>, StringError>
   unserialize(ClientParameters &expectedParams, std::istream &istream);
 
   outcome::checked<void, StringError> serialize(std::ostream &ostream);
diff --git a/compiler/lib/ClientLib/PublicArguments.cpp b/compiler/lib/ClientLib/PublicArguments.cpp
index cfd0a7d17..553152ac5 100644
--- a/compiler/lib/ClientLib/PublicArguments.cpp
+++ b/compiler/lib/ClientLib/PublicArguments.cpp
@@ -119,7 +119,7 @@ PublicArguments::unserializeArgs(std::istream &istream) {
   return outcome::success();
 }
 
-outcome::checked<std::shared_ptr<PublicArguments>, StringError>
+outcome::checked<std::unique_ptr<PublicArguments>, StringError>
 PublicArguments::unserialize(ClientParameters &clientParameters,
                              std::istream &istream) {
   RuntimeContext runtimeContext;
@@ -129,7 +129,7 @@ PublicArguments::unserialize(ClientParameters &clientParameters,
   }
   std::vector<void *> empty;
   std::vector<TensorData> emptyBuffers;
-  auto sArguments = std::make_shared<PublicArguments>(
+  auto sArguments = std::make_unique<PublicArguments>(
       clientParameters, runtimeContext, true, std::move(empty),
       std::move(emptyBuffers));
   OUTCOME_TRYV(sArguments->unserializeArgs(istream));