diff --git a/rjp++/include/object.hpp b/rjp++/include/object.hpp
index 48b4d4c..19ec821 100644
--- a/rjp++/include/object.hpp
+++ b/rjp++/include/object.hpp
@@ -138,7 +138,7 @@ namespace rjp{
 
 	private:
 		RJP_value* add_member_impl(const rexy::string_base<char>& key);
-		RJP_value* add_member_impl(rexy::string_base<char>&& key);
+		RJP_value* add_member_impl(string&& key);
 	};
 
 }
diff --git a/rjp++/src/object.cpp b/rjp++/src/object.cpp
index 34388f7..0730425 100644
--- a/rjp++/src/object.cpp
+++ b/rjp++/src/object.cpp
@@ -130,7 +130,7 @@ namespace rjp{
 	RJP_value* object::add_member_impl(const rexy::string_base<char>& key){
 		return rjp_new_member(m_value, key.get(), key.length());
 	}
-	RJP_value* object::add_member_impl(rexy::string_base<char>&& key){
+	RJP_value* object::add_member_impl(string&& key){
 		auto length = key.length();
 		return rjp_new_member_steal_key(m_value, key.release(), length);
 	}
diff --git a/rjp++/src/string.cpp b/rjp++/src/string.cpp
index 79bac01..a2d9afb 100644
--- a/rjp++/src/string.cpp
+++ b/rjp++/src/string.cpp
@@ -40,9 +40,9 @@ namespace rjp{
 			return *this;
 		reset();
 		RJP_string* str = rjp_get_string(r);
-		m_data = std::exchange(str->value, nullptr);
-		m_length = str->length;
-		m_cap = str->length;
+		set_long_ptr(std::exchange(str->value, nullptr));
+		set_long_length(str->length);
+		set_long_capacity(str->length);
 		str->length = 0;
 		return *this;
 	}