diff --git a/services/web/frontend/extracted-translations.json b/services/web/frontend/extracted-translations.json
index c75cb12634..f9b11f80c7 100644
--- a/services/web/frontend/extracted-translations.json
+++ b/services/web/frontend/extracted-translations.json
@@ -35,6 +35,7 @@
   "add_role_and_department": "",
   "add_to_tag": "",
   "add_your_first_group_member_now": "",
+  "added_by_on": "",
   "adding": "",
   "additional_licenses": "",
   "address_line_1": "",
@@ -195,6 +196,7 @@
   "delete_token": "",
   "delete_your_account": "",
   "deleted_at": "",
+  "deleted_by_on": "",
   "deleting": "",
   "demonstrating_git_integration": "",
   "department": "",
diff --git a/services/web/frontend/js/features/history/components/diff-view/diff-view.tsx b/services/web/frontend/js/features/history/components/diff-view/diff-view.tsx
index abcdd9509d..4d29613a28 100644
--- a/services/web/frontend/js/features/history/components/diff-view/diff-view.tsx
+++ b/services/web/frontend/js/features/history/components/diff-view/diff-view.tsx
@@ -7,10 +7,12 @@ import { diffDoc } from '../../services/api'
 import { highlightsFromDiffResponse } from '../../utils/highlights-from-diff-response'
 import useAsync from '../../../../shared/hooks/use-async'
 import ErrorMessage from '../error-message'
+import { useTranslation } from 'react-i18next'
 
 function DiffView() {
   const { selection, projectId, loadingFileDiffs } = useHistoryContext()
   const { isLoading, data, runAsync, error } = useAsync<DocDiffResponse>()
+  const { t } = useTranslation()
   const { updateRange, selectedFile } = selection
 
   useEffect(() => {
@@ -34,7 +36,7 @@ function DiffView() {
   } else {
     diff = {
       binary: false,
-      docDiff: highlightsFromDiffResponse(data.diff),
+      docDiff: highlightsFromDiffResponse(data.diff, t),
     }
   }
 
diff --git a/services/web/frontend/js/features/history/utils/highlights-from-diff-response.ts b/services/web/frontend/js/features/history/utils/highlights-from-diff-response.ts
index ecfde4c53f..4238d982fe 100644
--- a/services/web/frontend/js/features/history/utils/highlights-from-diff-response.ts
+++ b/services/web/frontend/js/features/history/utils/highlights-from-diff-response.ts
@@ -2,8 +2,12 @@ import displayNameForUser from '../../../ide/history/util/displayNameForUser'
 import moment from 'moment/moment'
 import ColorManager from '../../../ide/colors/ColorManager'
 import { DocDiffChunk, Highlight } from '../services/types/doc'
+import { TFunction } from 'react-i18next'
 
-export function highlightsFromDiffResponse(chunks: DocDiffChunk[]) {
+export function highlightsFromDiffResponse(
+  chunks: DocDiffChunk[],
+  t: TFunction<'translation'> // Must be called `t` for i18next-scanner to find calls to it
+) {
   let pos = 0
   const highlights: Highlight[] = []
   let doc = ''
@@ -31,7 +35,7 @@ export function highlightsFromDiffResponse(chunks: DocDiffChunk[]) {
         highlights.push({
           type: 'addition',
           // There doesn't seem to be a convenient way to make this translatable
-          label: `Added by ${name} on ${date}`,
+          label: t('added_by_on', { name, date }),
           range,
           hue: ColorManager.getHueForUserId(user?.id),
         })
@@ -39,7 +43,7 @@ export function highlightsFromDiffResponse(chunks: DocDiffChunk[]) {
         highlights.push({
           type: 'deletion',
           // There doesn't seem to be a convenient way to make this translatable
-          label: `Deleted by ${name} on ${date}`,
+          label: t('deleted_by_on', { name, date }),
           range,
           hue: ColorManager.getHueForUserId(user?.id),
         })
diff --git a/services/web/locales/en.json b/services/web/locales/en.json
index 69b241317f..ca65d7440d 100644
--- a/services/web/locales/en.json
+++ b/services/web/locales/en.json
@@ -66,6 +66,7 @@
   "add_your_comment_here": "Add your comment here",
   "add_your_first_group_member_now": "Add your first group members now",
   "added": "added",
+  "added_by_on": "Added by __name__ on __date__",
   "adding": "Adding",
   "additional_licenses": "Your subscription includes <0>__additionalLicenses__</0> additional license(s) for a total of <1>__totalLicenses__</1> licenses.",
   "address": "Address",
@@ -344,6 +345,7 @@
   "delete_token": "Delete token",
   "delete_your_account": "Delete your account",
   "deleted_at": "Deleted At",
+  "deleted_by_on": "Deleted by __name__ on __date__",
   "deleted_files": "Deleted Files",
   "deleting": "Deleting",
   "demonstrating_git_integration": "Demonstrating Git integration",