diff --git a/templates/normal/defines.h b/templates/normal/defines.h
index 629eccd..5a961ef 100644
--- a/templates/normal/defines.h
+++ b/templates/normal/defines.h
@@ -7,6 +7,10 @@
 #include {{{name}}}
 {{/includes}}
 
+using cpp_time_base = {{cpp_time_base}};
+using embb_time_base = {{embb_time_base}};
+using base_clock = {{base_clock}};
+
 {{#data_description}}
 struct {{name}} {
     {{#fields}}