diff --git a/template/defines.h b/template/defines.h
index 2e219ed..72ddf18 100644
--- a/template/defines.h
+++ b/template/defines.h
@@ -14,18 +14,22 @@ struct {{name}} {
     {{/fields}}
 };
 
+{{/data_description}}
 {{#data}}
-    {{type}} {{name}}[] = { 
-    {{#elem}}
-        .wcet = {{wcet}}
-        .period = {{period}}
-        .deadline = {{deadline}}
-        .periodical = {{periodical}}
-        .ticktype = {{ticktype}}
-    {{/elem}}
-    };
-{{/data}}
+{{type}} {{name}}[] = {
+{{#elem}}
+    {
+        .offset = {{offset}},
+        .wcet = {{wcet}},
+        .period = {{period}},
+        .deadline = {{deadline}},
+        .periodical = {{periodical}},
+    },
+{{/elem}}
+};
+const int {{name}}_length = sizeof({{name}}) / sizeof({{type}});
 
+{{/data}}
 {{#executions}}
 int executions = 500;
 {{/executions}}