diff --git a/include/sqlpp11/ppgen.h b/include/sqlpp11/ppgen.h
index 0fd267a6..f602ede5 100644
--- a/include/sqlpp11/ppgen.h
+++ b/include/sqlpp11/ppgen.h
@@ -69,6 +69,7 @@
 #include <sqlpp11/ppgen/colops/foreign_key.h>
 #include <sqlpp11/ppgen/colops/index.h>
 #include <sqlpp11/ppgen/colops/integer.h>
+#include <sqlpp11/ppgen/colops/unsigned_integer.h>
 #include <sqlpp11/ppgen/colops/not_null.h>
 #include <sqlpp11/ppgen/colops/null.h>
 #include <sqlpp11/ppgen/colops/primary_key.h>
diff --git a/include/sqlpp11/ppgen/colops/unsigned_integer.h b/include/sqlpp11/ppgen/colops/unsigned_integer.h
new file mode 100644
index 00000000..08f54411
--- /dev/null
+++ b/include/sqlpp11/ppgen/colops/unsigned_integer.h
@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) 2014-2017, Damien COJAN
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *   Redistributions of source code must retain the above copyright notice, this
+ *   list of conditions and the following disclaimer.
+ *
+ *   Redistributions in binary form must reproduce the above copyright notice, this
+ *   list of conditions and the following disclaimer in the documentation and/or
+ *   other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+// clang-format off
+
+#ifndef _sqlpp__ppgen__colops__unsigned_integer_h
+#define _sqlpp__ppgen__colops__unsigned_integer_h
+
+#define SQLPP_DECLARE_COLUMN_GET_TRAITS_LAZY_tinyint_unsigned \
+  PROC_tinyint_unsigned
+#define SQLPP_DECLARE_COLUMN_GEN_TRAITS_PROC_tinyint_unsigned(...) \
+  ::sqlpp::tinyint_unsigned
+
+#define SQLPP_DECLARE_COLUMN_GET_TRAITS_LAZY_smallint_unsigned \
+  PROC_smallint_unsigned
+#define SQLPP_DECLARE_COLUMN_GEN_TRAITS_PROC_smallint_unsigned(...) \
+  ::sqlpp::smallint_unsigned
+
+#define SQLPP_DECLARE_COLUMN_GET_TRAITS_LAZY_int_unsigned \
+  PROC_int_unsigned
+#define SQLPP_DECLARE_COLUMN_GEN_TRAITS_PROC_int_unsigned(...) \
+  ::sqlpp::integer_unsigned
+
+#define SQLPP_DECLARE_COLUMN_GET_TRAITS_LAZY_bigint_unsigned \
+  PROC_bigint_unsigned
+#define SQLPP_DECLARE_COLUMN_GEN_TRAITS_PROC_bigint_unsigned(...) \
+  ::sqlpp::bigint_unsigned
+
+#endif  // _sqlpp__ppgen__colops__unsigned_integer_h
diff --git a/tests/Ppgen.cpp b/tests/Ppgen.cpp
index 296187e1..70332796 100644
--- a/tests/Ppgen.cpp
+++ b/tests/Ppgen.cpp
@@ -52,6 +52,7 @@ SQLPP_DECLARE_TABLE(
 	(id     , int         , SQLPP_PRIMARY_KEY)
 	(name   , varchar(255), SQLPP_NOT_NULL   )
 	(feature, int         , SQLPP_NOT_NULL   )
+	(age    , int_unsigned, SQLPP_NOT_NULL   )
 	(level  , real        , SQLPP_NOT_NULL   )
 )
 
@@ -77,20 +78,28 @@ int Ppgen(int, char* [])
 
   db(insert_into(f).default_values());
 
-  auto i = insert_into(p).columns(p.name, p.feature, p.level);
-  i.values.add(p.name = "Roland", p.feature = 1, p.level = 3.14);
-  i.values.add(p.name = "Zaphod", p.feature = sqlpp::default_value, p.level = 3.14*2);
+  auto i = insert_into(p).columns(p.name, p.feature, p.age, p.level);
+  i.values.add(p.name = "Roland"
+               , p.feature = 1
+               , p.age = static_cast<unsigned int>(32)
+               , p.level = 3.14);
+  i.values.add(p.name = "Zaphod"
+               , p.feature = sqlpp::default_value
+               , p.age = static_cast<unsigned int>(16)
+               , p.level = 3.14*2);
   db(i);
 
   auto pi = db.prepare(
     insert_into(p).set(
        p.name = parameter(f.name)
       ,p.feature = parameter(p.feature)
+      ,p.age = parameter(p.age)
       ,p.level = parameter(p.level)
     )
   );
   pi.params.name = "likes java";
   pi.params.feature = 2;
+  pi.params.age = 21;
   pi.params.level = 3.14;
 
   db(pi);