diff --git a/include/sqlpp11/interpretable.h b/include/sqlpp11/interpretable.h
index 28a2413b..c93bcaea 100644
--- a/include/sqlpp11/interpretable.h
+++ b/include/sqlpp11/interpretable.h
@@ -82,7 +82,7 @@ namespace sqlpp
 			template<typename T>
 				struct _impl_t: public _impl_base
 			{
-				static_assert(not make_parameter_list_t<T>::type::size::value, "parameters not supported in dynamic statement parts");
+				static_assert(not make_parameter_list_t<T>::size::value, "parameters not supported in dynamic statement parts");
 				_impl_t(T t):
 					_t(t)
 				{}
diff --git a/include/sqlpp11/into.h b/include/sqlpp11/into.h
index fe07b073..fd2a08e4 100644
--- a/include/sqlpp11/into.h
+++ b/include/sqlpp11/into.h
@@ -29,6 +29,7 @@
 
 #include <sqlpp11/type_traits.h>
 #include <sqlpp11/no_value.h>
+#include <sqlpp11/prepared_insert.h>
 #include <sqlpp11/serializer.h>
 #include <sqlpp11/detail/type_set.h>
 
diff --git a/include/sqlpp11/named_interpretable.h b/include/sqlpp11/named_interpretable.h
index 4aa93fa2..78af6e8c 100644
--- a/include/sqlpp11/named_interpretable.h
+++ b/include/sqlpp11/named_interpretable.h
@@ -86,7 +86,7 @@ namespace sqlpp
 			template<typename T>
 				struct _impl_t: public _impl_base
 			{
-				static_assert(not make_parameter_list_t<T>::type::size::value, "parameters not supported in dynamic statement parts");
+				static_assert(not make_parameter_list_t<T>::size::value, "parameters not supported in dynamic statement parts");
 				_impl_t(T t):
 					_t(t)
 				{}
diff --git a/include/sqlpp11/remove.h b/include/sqlpp11/remove.h
index c0abe94e..38a686b8 100644
--- a/include/sqlpp11/remove.h
+++ b/include/sqlpp11/remove.h
@@ -69,7 +69,7 @@ namespace sqlpp
 					 auto _prepare(Db& db) const
 					 -> prepared_remove_t<Db, _statement_t>
 					 {
-						 _check_consistency();
+						 _statement_t::_check_consistency();
 
 						 return {{}, db.prepare_remove(*this)};
 					 }
diff --git a/include/sqlpp11/simple_column.h b/include/sqlpp11/simple_column.h
index 34f030e3..0f05befe 100644
--- a/include/sqlpp11/simple_column.h
+++ b/include/sqlpp11/simple_column.h
@@ -28,6 +28,7 @@
 #define SQLPP_SIMPLE_COLUMN_H
 
 #include <sqlpp11/serializer.h>
+#include <sqlpp11/type_traits.h>
 
 namespace sqlpp
 {
@@ -35,6 +36,9 @@ namespace sqlpp
 		struct simple_column_t
 		{
 			Column _column;
+
+			using _traits = make_traits<no_value_t, ::sqlpp::tag::noop>;
+			using _recursive_traits = make_recursive_traits<>;
 		};
 
 	template<typename Context, typename Column>
@@ -52,6 +56,7 @@ namespace sqlpp
 	template<typename Column>
 		simple_column_t<Column> simple_column(Column c)
 		{
+#warning: make sure that there are no parameters in Column
 			return {c};
 		}
 }
diff --git a/include/sqlpp11/single_table.h b/include/sqlpp11/single_table.h
index a51b94e4..31d667e2 100644
--- a/include/sqlpp11/single_table.h
+++ b/include/sqlpp11/single_table.h
@@ -30,6 +30,7 @@
 #include <sqlpp11/type_traits.h>
 #include <sqlpp11/no_value.h>
 #include <sqlpp11/serializer.h>
+#include <sqlpp11/prepared_insert.h>
 #include <sqlpp11/detail/type_set.h>
 
 namespace sqlpp
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index 0368c2b3..350602ec 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -6,13 +6,13 @@ macro (build_and_run arg)
 	add_test(${arg} ${arg})
 endmacro ()
 
-#build_and_run(InterpretTest)
-#build_and_run(InsertTest)
-#build_and_run(RemoveTest)
-#build_and_run(UpdateTest)
-#build_and_run(SelectTest)
-#build_and_run(SelectTypeTest)
-#build_and_run(FunctionTest)
+build_and_run(InterpretTest)
+build_and_run(InsertTest)
+build_and_run(RemoveTest)
+build_and_run(UpdateTest)
+build_and_run(SelectTest)
+build_and_run(SelectTypeTest)
+build_and_run(FunctionTest)
 build_and_run(PreparedTest)
 
 find_package(PythonInterp REQUIRED)