diff --git a/src/revisions/revision.dto.ts b/src/revisions/revision.dto.ts
index 4704f9e9a..24033566d 100644
--- a/src/revisions/revision.dto.ts
+++ b/src/revisions/revision.dto.ts
@@ -28,6 +28,14 @@ export class RevisionDto extends BaseDto {
   @ApiProperty()
   content: string;
 
+  /**
+   * Number of characters in this revision
+   * @example 142
+   */
+  @IsNumber()
+  @ApiProperty()
+  length: number;
+
   /**
    * Patch from the preceding revision to this one
    */
diff --git a/src/revisions/revisions.service.ts b/src/revisions/revisions.service.ts
index 2363c8167..3389ea962 100644
--- a/src/revisions/revisions.service.ts
+++ b/src/revisions/revisions.service.ts
@@ -115,6 +115,7 @@ export class RevisionsService {
     return {
       id: revision.id,
       content: revision.content,
+      length: revision.length,
       createdAt: revision.createdAt,
       patch: revision.patch,
       edits: await Promise.all(