diff --git a/mobile/lib/models/activities/activity.model.dart b/mobile/lib/models/activities/activity.model.dart
index 9cb3d0790c..6adb80dca9 100644
--- a/mobile/lib/models/activities/activity.model.dart
+++ b/mobile/lib/models/activities/activity.model.dart
@@ -43,7 +43,7 @@ class Activity {
         assetId = dto.assetId,
         comment = dto.comment,
         createdAt = dto.createdAt,
-        type = dto.type == ActivityResponseDtoTypeEnum.comment
+        type = dto.type == ReactionType.comment
             ? ActivityType.comment
             : ActivityType.like,
         user = User.fromSimpleUserDto(dto.user);
diff --git a/mobile/openapi/lib/model/activity_response_dto.dart b/mobile/openapi/lib/model/activity_response_dto.dart
index cd7a4f482f..bfffd8485b 100644
Binary files a/mobile/openapi/lib/model/activity_response_dto.dart and b/mobile/openapi/lib/model/activity_response_dto.dart differ
diff --git a/mobile/openapi/lib/model/memory_response_dto.dart b/mobile/openapi/lib/model/memory_response_dto.dart
index 06e0e3114b..f794be53cd 100644
Binary files a/mobile/openapi/lib/model/memory_response_dto.dart and b/mobile/openapi/lib/model/memory_response_dto.dart differ
diff --git a/open-api/immich-openapi-specs.json b/open-api/immich-openapi-specs.json
index 3e1744d570..5a327f1d34 100644
--- a/open-api/immich-openapi-specs.json
+++ b/open-api/immich-openapi-specs.json
@@ -7216,11 +7216,7 @@
             "type": "string"
           },
           "type": {
-            "enum": [
-              "comment",
-              "like"
-            ],
-            "type": "string"
+            "$ref": "#/components/schemas/ReactionType"
           },
           "user": {
             "$ref": "#/components/schemas/UserResponseDto"
@@ -9311,10 +9307,7 @@
             "type": "string"
           },
           "type": {
-            "enum": [
-              "on_this_day"
-            ],
-            "type": "string"
+            "$ref": "#/components/schemas/MemoryType"
           },
           "updatedAt": {
             "format": "date-time",
diff --git a/open-api/typescript-sdk/src/fetch-client.ts b/open-api/typescript-sdk/src/fetch-client.ts
index 7b43a6f3ff..85575893f0 100644
--- a/open-api/typescript-sdk/src/fetch-client.ts
+++ b/open-api/typescript-sdk/src/fetch-client.ts
@@ -26,7 +26,7 @@ export type ActivityResponseDto = {
     comment?: string | null;
     createdAt: string;
     id: string;
-    "type": Type;
+    "type": ReactionType;
     user: UserResponseDto;
 };
 export type ActivityCreateDto = {
@@ -572,7 +572,7 @@ export type MemoryResponseDto = {
     memoryAt: string;
     ownerId: string;
     seenAt?: string;
-    "type": Type2;
+    "type": MemoryType;
     updatedAt: string;
 };
 export type MemoryCreateDto = {
@@ -3065,10 +3065,6 @@ export enum ReactionType {
     Comment = "comment",
     Like = "like"
 }
-export enum Type {
-    Comment = "comment",
-    Like = "like"
-}
 export enum UserAvatarColor {
     Primary = "primary",
     Pink = "pink",
@@ -3164,9 +3160,6 @@ export enum MapTheme {
     Light = "light",
     Dark = "dark"
 }
-export enum Type2 {
-    OnThisDay = "on_this_day"
-}
 export enum MemoryType {
     OnThisDay = "on_this_day"
 }
diff --git a/server/src/dtos/activity.dto.ts b/server/src/dtos/activity.dto.ts
index 4a3de208ff..4bc0065244 100644
--- a/server/src/dtos/activity.dto.ts
+++ b/server/src/dtos/activity.dto.ts
@@ -19,6 +19,7 @@ export type MaybeDuplicate<T> = { duplicate: boolean; value: T };
 export class ActivityResponseDto {
   id!: string;
   createdAt!: Date;
+  @ApiProperty({ enumName: 'ReactionType', enum: ReactionType })
   type!: ReactionType;
   user!: UserResponseDto;
   assetId!: string | null;
@@ -53,7 +54,7 @@ export class ActivitySearchDto extends ActivityDto {
   userId?: string;
 }
 
-const isComment = (dto: ActivityCreateDto) => dto.type === 'comment';
+const isComment = (dto: ActivityCreateDto) => dto.type === ReactionType.COMMENT;
 
 export class ActivityCreateDto extends ActivityDto {
   @IsEnum(ReactionType)
diff --git a/server/src/dtos/memory.dto.ts b/server/src/dtos/memory.dto.ts
index ecd62785f8..c9db4b04e0 100644
--- a/server/src/dtos/memory.dto.ts
+++ b/server/src/dtos/memory.dto.ts
@@ -61,6 +61,7 @@ export class MemoryResponseDto {
   memoryAt!: Date;
   seenAt?: Date;
   ownerId!: string;
+  @ApiProperty({ enumName: 'MemoryType', enum: MemoryType })
   type!: MemoryType;
   data!: MemoryData;
   isSaved!: boolean;
diff --git a/web/src/lib/components/asset-viewer/activity-viewer.svelte b/web/src/lib/components/asset-viewer/activity-viewer.svelte
index 4664dcc3c5..050802e1d0 100644
--- a/web/src/lib/components/asset-viewer/activity-viewer.svelte
+++ b/web/src/lib/components/asset-viewer/activity-viewer.svelte
@@ -8,7 +8,6 @@
   import { isTenMinutesApart } from '$lib/utils/timesince';
   import {
     ReactionType,
-    Type,
     createActivity,
     deleteActivity,
     getActivities,
@@ -111,15 +110,15 @@
       await deleteActivity({ id: reaction.id });
       reactions.splice(index, 1);
       reactions = reactions;
-      if (isLiked && reaction.type === 'like' && reaction.id == isLiked.id) {
+      if (isLiked && reaction.type === ReactionType.Like && reaction.id == isLiked.id) {
         dispatch('deleteLike');
       } else {
         dispatch('deleteComment');
       }
 
-      const deleteMessages: Record<Type, string> = {
-        [Type.Comment]: $t('comment_deleted'),
-        [Type.Like]: $t('like_deleted'),
+      const deleteMessages: Record<ReactionType, string> = {
+        [ReactionType.Comment]: $t('comment_deleted'),
+        [ReactionType.Like]: $t('like_deleted'),
       };
       notificationController.show({
         message: deleteMessages[reaction.type],
@@ -172,7 +171,7 @@
         style="height: {divHeight}px;padding-bottom: {chatHeight}px"
       >
         {#each reactions as reaction, index (reaction.id)}
-          {#if reaction.type === 'comment'}
+          {#if reaction.type === ReactionType.Comment}
             <div class="flex dark:bg-gray-800 bg-gray-200 py-3 pl-3 mt-3 rounded-lg gap-4 justify-start">
               <div class="flex items-center">
                 <UserAvatar user={reaction.user} size="sm" />
@@ -216,7 +215,7 @@
                 {timeSince(luxon.DateTime.fromISO(reaction.createdAt, { locale: $locale }))}
               </div>
             {/if}
-          {:else if reaction.type === 'like'}
+          {:else if reaction.type === ReactionType.Like}
             <div class="relative">
               <div class="flex py-3 pl-3 mt-3 gap-4 items-center text-sm">
                 <div class="text-red-600"><Icon path={mdiHeart} size={20} /></div>