diff --git a/CMakeLists.txt b/CMakeLists.txt
index aa6afdc1..29e67227 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -16,7 +16,7 @@ set(CMAKE_CXX_EXTENSIONS OFF)
 project(loki VERSION "0.0.1" LANGUAGES C CXX)
 
 # Compilation flags, some configuration-specific
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g -Wall -Wextra -pedantic -fPIC")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g -Wall -Wextra -Wuninitialized -pedantic -fPIC")
 set(CMAKE_CXX_FLAGS_RELEASE "-O3 -DNDEBUG -fomit-frame-pointer")
 set(CMAKE_CXX_FLAGS_DEBUG "-O3 -DDEBUG")
 
diff --git a/include/loki/common/pddl/persistent_factory.hpp b/include/loki/common/pddl/persistent_factory.hpp
index 87624e67..78810cf0 100644
--- a/include/loki/common/pddl/persistent_factory.hpp
+++ b/include/loki/common/pddl/persistent_factory.hpp
@@ -68,7 +68,7 @@ class PersistentFactory {
     /// @brief Returns a pointer to an existing object
     ///        or creates it before if it does not exist.v
     template<typename SubType, typename... Args>
-    [[nodiscard]] HolderType const* get_or_create(Args&&... args) {
+    [[nodiscard]] HolderType const* get_or_create(Args... args) {
         std::lock_guard<std::mutex> hold(m_mutex);
         /* Construct and insert the element in persistent memory. */
         size_t identifier = m_count;
@@ -76,12 +76,20 @@ class PersistentFactory {
         assert((identifier == (m_persistent_vector.size()-1))
             || (identifier == m_persistent_vector.size()));
         // Explicitly call the constructor of T to give exclusive access to the factory.
-        auto element = HolderType(std::move(SubType(identifier, std::forward<Args>(args)...)));
+        auto element = HolderType(std::move(SubType(identifier, args...)));
         bool overwrite_last_element = (identifier == m_persistent_vector.size() - 1);
         // The pointer to the location in persistent memory.
-        const auto* element_ptr = overwrite_last_element 
-            ? &(m_persistent_vector[identifier] = std::move(element))
-            : &(m_persistent_vector.push_back(std::move(element)));
+        const auto* element_ptr = static_cast<const HolderType*>(nullptr);
+        if (overwrite_last_element) {
+            const auto& persistent_element = m_persistent_vector[identifier] = std::move(element);
+            element_ptr = &persistent_element;
+        } else {
+            const auto& persistent_element = m_persistent_vector.push_back(std::move(element));
+            element_ptr = &persistent_element;
+        }
+        if (!element_ptr) {
+            throw std::runtime_error("element_ptr is nullptr");
+        }
         assert(element_ptr);
         /* Test for uniqueness */
         auto it = m_uniqueness_set.find(element_ptr);
diff --git a/src/domain/pddl/parser/constants.cpp b/src/domain/pddl/parser/constants.cpp
index 65563702..01fd7131 100644
--- a/src/domain/pddl/parser/constants.cpp
+++ b/src/domain/pddl/parser/constants.cpp
@@ -79,8 +79,7 @@ pddl::ObjectList ConstantListVisitor::operator()(const std::vector<ast::Name>& n
     assert(context.scopes.get<pddl::TypeImpl>("object").has_value());
     const auto& [type, _position, _error_handler] = context.scopes.get<pddl::TypeImpl>("object").value();
     const auto type_list = pddl::TypeList{type};
-    const auto constant_list = parse_constant_definitions(name_nodes, type_list, context);
-    return constant_list;
+    return parse_constant_definitions(name_nodes, type_list, context);
 }
 
 pddl::ObjectList ConstantListVisitor::operator()(const ast::TypedListOfNamesRecursively& typed_list_of_names_recursively_node) {
@@ -88,8 +87,8 @@ pddl::ObjectList ConstantListVisitor::operator()(const ast::TypedListOfNamesRecu
         throw UndefinedRequirementError(pddl::RequirementEnum::TYPING, context.scopes.get_error_handler()(typed_list_of_names_recursively_node, ""));
     }
     context.references.untrack(pddl::RequirementEnum::TYPING);
-    const auto type_list = boost::apply_visitor(TypeReferenceTypeVisitor(context),
-                                            typed_list_of_names_recursively_node.type);
+    const auto type_list = boost::apply_visitor(
+        TypeReferenceTypeVisitor(context), typed_list_of_names_recursively_node.type);
     // TypedListOfNamesRecursively has user defined base types
     auto constant_list = parse_constant_definitions(typed_list_of_names_recursively_node.names, type_list, context);
     // Recursively add objects.