diff --git a/include/sqlpp11/boolean.h b/include/sqlpp11/boolean.h
index 20a663ac..848f2acf 100644
--- a/include/sqlpp11/boolean.h
+++ b/include/sqlpp11/boolean.h
@@ -40,7 +40,7 @@ namespace sqlpp
 	// boolean value type
 	struct boolean
 	{
-		using _traits = make_traits<boolean, ::sqlpp::tag::is_boolean, ::sqlpp::tag::is_value_type>;
+		using _traits = make_traits<boolean, ::sqlpp::tag::is_value_type>;
 		using _tag = ::sqlpp::tag::is_boolean;
 		using _cpp_value_type = bool;
 
diff --git a/include/sqlpp11/floating_point.h b/include/sqlpp11/floating_point.h
index 9f61c251..400eceeb 100644
--- a/include/sqlpp11/floating_point.h
+++ b/include/sqlpp11/floating_point.h
@@ -38,7 +38,7 @@ namespace sqlpp
 	// floating_point value type
 	struct floating_point
 	{
-		using _traits = make_traits<floating_point, ::sqlpp::tag::is_floating_point, ::sqlpp::tag::is_value_type>;
+		using _traits = make_traits<floating_point, ::sqlpp::tag::is_value_type>;
 		using _tag = ::sqlpp::tag::is_floating_point;
 		using _cpp_value_type = double;
 
diff --git a/include/sqlpp11/integral.h b/include/sqlpp11/integral.h
index 0e509bbf..feef4446 100644
--- a/include/sqlpp11/integral.h
+++ b/include/sqlpp11/integral.h
@@ -40,7 +40,7 @@ namespace sqlpp
 	// integral value type
 	struct integral
 	{
-		using _traits = make_traits<integral, ::sqlpp::tag::is_integral, ::sqlpp::tag::is_value_type>;
+		using _traits = make_traits<integral, ::sqlpp::tag::is_value_type>;
 		using _tag = ::sqlpp::tag::is_integral;
 		using _cpp_value_type = int64_t;
 
diff --git a/include/sqlpp11/text.h b/include/sqlpp11/text.h
index 7dda39a8..258603aa 100644
--- a/include/sqlpp11/text.h
+++ b/include/sqlpp11/text.h
@@ -39,7 +39,7 @@ namespace sqlpp
 	// text value type
 	struct text
 	{
-		using _traits = make_traits<text, ::sqlpp::tag::is_text, ::sqlpp::tag::is_value_type>;
+		using _traits = make_traits<text, ::sqlpp::tag::is_value_type>;
 		using _tag = ::sqlpp::tag::is_text;
 		using _cpp_value_type = std::string;