diff --git a/include/sqlpp11/column.h b/include/sqlpp11/column.h
index bb0dd740..99e74b41 100644
--- a/include/sqlpp11/column.h
+++ b/include/sqlpp11/column.h
@@ -114,6 +114,7 @@ namespace sqlpp
 
 			static Context& _(const T& t, Context& context)
 			{
+				(void)t;
 				context << name_of<typename T::_table>::char_ptr() << '.' << name_of<T>::char_ptr();
 				return context;
 			}
diff --git a/include/sqlpp11/detail/pick_arg.h b/include/sqlpp11/detail/pick_arg.h
index 12a7a9c6..ad2f92d0 100644
--- a/include/sqlpp11/detail/pick_arg.h
+++ b/include/sqlpp11/detail/pick_arg.h
@@ -36,12 +36,14 @@ namespace sqlpp
 		template<typename Target, typename Statement, typename Term>
 			typename Target::_data_t pick_arg_impl(Statement statement, Term term, const std::true_type&)
 			{
+				(void)statement;
 				return term;
 			}
 
 		template<typename Target, typename Statement, typename Term>
 			typename Target::_data_t pick_arg_impl(Statement statement, Term term, const std::false_type&)
 			{
+				(void)term;
 				return Target::_get_member(statement)._data;
 			}
 
diff --git a/include/sqlpp11/insert.h b/include/sqlpp11/insert.h
index e639be61..bffc99bf 100644
--- a/include/sqlpp11/insert.h
+++ b/include/sqlpp11/insert.h
@@ -95,6 +95,7 @@ namespace sqlpp
 
 			static Context& _(const T& t, Context& context)
 			{
+				(void)t;
 				context << "INSERT ";
 
 				return context;
diff --git a/include/sqlpp11/insert_value_list.h b/include/sqlpp11/insert_value_list.h
index de3b560c..628853a1 100644
--- a/include/sqlpp11/insert_value_list.h
+++ b/include/sqlpp11/insert_value_list.h
@@ -447,6 +447,7 @@ namespace sqlpp
 
 			static Context& _(const T& t, Context& context)
 			{
+				(void)t;
 				context << " DEFAULT VALUES";
 				return context;
 			}
diff --git a/include/sqlpp11/interpretable_list.h b/include/sqlpp11/interpretable_list.h
index 8a5d1ea2..91d6aebb 100644
--- a/include/sqlpp11/interpretable_list.h
+++ b/include/sqlpp11/interpretable_list.h
@@ -100,6 +100,8 @@ namespace sqlpp
 			template<typename Separator>
 				static Context& _(const T& t, const Separator& separator, Context& context)
 				{
+					(void)t;
+					(void)separator;
 					return context;
 				}
 		};
diff --git a/include/sqlpp11/no_data.h b/include/sqlpp11/no_data.h
index f90f4377..5b636c0a 100644
--- a/include/sqlpp11/no_data.h
+++ b/include/sqlpp11/no_data.h
@@ -42,6 +42,7 @@ namespace sqlpp
 
 			static Context& _(const T& t, Context& context)
 			{
+				(void)t;
 				return context;
 			}
 		};
diff --git a/include/sqlpp11/select.h b/include/sqlpp11/select.h
index 6fe57fd1..f82465e4 100644
--- a/include/sqlpp11/select.h
+++ b/include/sqlpp11/select.h
@@ -62,6 +62,7 @@ namespace sqlpp
 
 			static Context& _(const T& t, Context& context)
 			{
+				(void)t;
 				context << "SELECT ";
 
 				return context;
diff --git a/include/sqlpp11/select_column_list.h b/include/sqlpp11/select_column_list.h
index 0a5b5e74..641c099c 100644
--- a/include/sqlpp11/select_column_list.h
+++ b/include/sqlpp11/select_column_list.h
@@ -121,6 +121,7 @@ namespace sqlpp
 
 			static Context& _(const T& t, Context& context)
 			{
+				(void)t;
 				return context;
 			}
 		};
diff --git a/include/sqlpp11/simple_column.h b/include/sqlpp11/simple_column.h
index c5442a61..69159fb2 100644
--- a/include/sqlpp11/simple_column.h
+++ b/include/sqlpp11/simple_column.h
@@ -50,6 +50,7 @@ namespace sqlpp
 
 			static Context& _(const T& t, Context& context)
 			{
+				(void)t;
 				context << name_of<typename T::_column_t>::char_ptr();
 				return context;
 			}
diff --git a/include/sqlpp11/table.h b/include/sqlpp11/table.h
index 9c19da4b..f630dd82 100644
--- a/include/sqlpp11/table.h
+++ b/include/sqlpp11/table.h
@@ -107,6 +107,7 @@ namespace sqlpp
 
 			static Context& _(const T& t, Context& context)
 			{
+				(void)t;
 				context << name_of<T>::char_ptr();
 				return context;
 			}
diff --git a/include/sqlpp11/update.h b/include/sqlpp11/update.h
index 1f3019f9..652f5a0a 100644
--- a/include/sqlpp11/update.h
+++ b/include/sqlpp11/update.h
@@ -96,6 +96,7 @@ namespace sqlpp
 
 			static Context& _(const T& t, Context& context)
 			{
+				(void)t;
 				context << "UPDATE ";
 
 				return context;