diff --git a/macros/groupby.sql b/macros/groupby.sql
index 6dddcf5c..36543233 100644
--- a/macros/groupby.sql
+++ b/macros/groupby.sql
@@ -1,7 +1,7 @@
 {% macro group_by(n) %}
 
   group by
-    {% for i in range(1, n) %}
+    {% for i in range(1, n + 1) %}
       {{ i }}
       {% if not loop.last %} , {% endif %}
    {% endfor %}