diff --git a/include/sqlpp11/data_types/day_point/operand.h b/include/sqlpp11/data_types/day_point/operand.h
index e913eb90..55acdb2d 100644
--- a/include/sqlpp11/data_types/day_point/operand.h
+++ b/include/sqlpp11/data_types/day_point/operand.h
@@ -45,7 +45,7 @@ namespace sqlpp
 
     using _value_t = ::sqlpp::chrono::day_point;
 
-    day_point_operand() : _t{}
+    day_point_operand()
     {
     }
 
diff --git a/include/sqlpp11/data_types/text/operand.h b/include/sqlpp11/data_types/text/operand.h
index ba8c9cfa..aaeb9df0 100644
--- a/include/sqlpp11/data_types/text/operand.h
+++ b/include/sqlpp11/data_types/text/operand.h
@@ -45,7 +45,7 @@ namespace sqlpp
 
     using _value_t = std::string;
 
-    text_operand() : _t{}
+    text_operand()
     {
     }
 
diff --git a/include/sqlpp11/select_flag_list.h b/include/sqlpp11/select_flag_list.h
index 3a460685..92ec5ba1 100644
--- a/include/sqlpp11/select_flag_list.h
+++ b/include/sqlpp11/select_flag_list.h
@@ -248,7 +248,7 @@ namespace sqlpp
     static Context& _(const T& t, Context& context)
     {
       interpret_tuple(t._flags, ' ', context);
-      if (sizeof...(Flags))
+      if (sizeof...(Flags) != 0u)
       {
         context << ' ';
       }