diff --git a/locales/en/translation.json b/locales/en/translation.json
index 8d6621e2c4e4cb952a57d20047baee1087a69b87..8dd85ecce50b36df10f904f7beb8adeca293366e 100644
--- a/locales/en/translation.json
+++ b/locales/en/translation.json
@@ -26,6 +26,7 @@
     "listAllOpenWindows": "List all open windows",
     "manifestError": "The resource cannot be added:",
     "menu": "Menu",
+    "numItems": "{{number}} items",
     "off": "Off",
     "openInfoCompanionWindow": "Open information companion window",
     "openCanvasNavigationCompanionWindow": "Open canvas navigation companion window",
diff --git a/src/components/ManifestListItem.js b/src/components/ManifestListItem.js
index c827ef8c54a6d139f7ce210abb8e5a19db13854c..d778cd556d50af16a210966d6a2da922f066551f 100644
--- a/src/components/ManifestListItem.js
+++ b/src/components/ManifestListItem.js
@@ -116,7 +116,7 @@ class ManifestListItem extends React.Component {
             </Grid>
             <Grid item xs={8} sm={4}>
               <Typography className={ns('manifest-list-item-provider')}>{provider || t('addedFromUrl')}</Typography>
-              <Typography>{`${size} items`}</Typography>
+              <Typography>{t('numItems', { number: size })}</Typography>
             </Grid>
 
             <Grid item xs={4} sm={2}>