diff --git a/include/MacStd/common.hpp b/include/MacStd/common.hpp
index a798b7f..21711c3 100644
--- a/include/MacStd/common.hpp
+++ b/include/MacStd/common.hpp
@@ -173,18 +173,17 @@ namespace macstd
 		}
 
 		///
-		/// Tests if the object handle is invalid.
+		/// Tests if the object handle is valid.
 		///
 		/// \return
-		/// - Non zero when object handle is invalid;
+		/// - Non zero when object handle is valid;
 		/// - Zero otherwise.
 		///
 		/// \note Implementing `operator bool() const` would be correct C++ approach here. Unfortunately, it would produce ambiguities where `bool` and `T` are polymorphed.
-		/// Use `!!` to test if the object handle is valid.
 		///
-		bool operator!() const
+		bool valid() const
 		{
-			return m_h == INVAL;
+			return m_h != INVAL;
 		}
 
 		///