diff --git a/source/plugins/isocalendar/README.md b/source/plugins/isocalendar/README.md
index c9f5c33c..4dafaaa9 100644
--- a/source/plugins/isocalendar/README.md
+++ b/source/plugins/isocalendar/README.md
@@ -42,7 +42,7 @@
   </tr>
   <tr>
     <td nowrap="nowrap"><code>plugin_isocalendar_duration</code></td>
-    <td rowspan="2"><p>Time window</p>
+    <td rowspan="2"><p>Time range</p>
 <ul>
 <li><code>half-year</code>: 180 days</li>
 <li><code>full-year</code>: 1 year</li>
diff --git a/source/plugins/isocalendar/metadata.yml b/source/plugins/isocalendar/metadata.yml
index a82632a8..757238d8 100644
--- a/source/plugins/isocalendar/metadata.yml
+++ b/source/plugins/isocalendar/metadata.yml
@@ -18,7 +18,7 @@ inputs:
 
   plugin_isocalendar_duration:
     description: |
-      Time window
+      Time range
       - `half-year`: 180 days
       - `full-year`: 1 year
     type: string