diff --git a/include/async_mqtt5/property_types.hpp b/include/async_mqtt5/property_types.hpp
index 1aa3806..b3745cf 100644
--- a/include/async_mqtt5/property_types.hpp
+++ b/include/async_mqtt5/property_types.hpp
@@ -54,6 +54,10 @@ public:
 		return !empty();
 	}
 
+	explicit operator bool() const noexcept {
+		return !empty();
+	}
+
 	int32_t& operator*() noexcept {
 		return front();
 	}