diff --git a/packages/backend/migration/1731910422761-rename-activity-log-indexes.js b/packages/backend/migration/1731910422761-rename-activity-log-indexes.js
new file mode 100644
index 0000000000..82d5a796e9
--- /dev/null
+++ b/packages/backend/migration/1731910422761-rename-activity-log-indexes.js
@@ -0,0 +1,16 @@
+/*
+ * SPDX-FileCopyrightText: hazelnoot and other Sharkey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+export class RenameActivityLogIndexes1731910422761 {
+    name = 'RenameActivityLogIndexes1731910422761'
+
+    async up(queryRunner) {
+        await queryRunner.query(`DROP INDEX "public"."IDK_activity_context_md5"`);
+		}
+
+    async down(queryRunner) {
+				await queryRunner.query(`CREATE INDEX "IDK_activity_context_md5" ON "activity_context" ("md5") `);
+    }
+}
diff --git a/packages/backend/src/models/SkActivityContext.ts b/packages/backend/src/models/SkActivityContext.ts
index 9fdd0a9525..349c3e7113 100644
--- a/packages/backend/src/models/SkActivityContext.ts
+++ b/packages/backend/src/models/SkActivityContext.ts
@@ -3,12 +3,13 @@
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 
-import { Column, PrimaryColumn, Entity, Index } from 'typeorm';
+import { Column, PrimaryColumn, Entity } from 'typeorm';
 
 @Entity('activity_context')
 export class SkActivityContext {
-	@PrimaryColumn('text')
-	@Index()
+	@PrimaryColumn('text', {
+		primaryKeyConstraintName: 'PK_activity_context',
+	})
 	public md5: string;
 
 	@Column('jsonb')
diff --git a/packages/backend/src/models/SkActivityLog.ts b/packages/backend/src/models/SkActivityLog.ts
index 229c333588..f23c0708b9 100644
--- a/packages/backend/src/models/SkActivityLog.ts
+++ b/packages/backend/src/models/SkActivityLog.ts
@@ -10,10 +10,13 @@ import { id } from './util/id.js';
 
 @Entity('activity_log')
 export class SkActivityLog {
-	@PrimaryColumn(id())
+	@PrimaryColumn({
+		...id(),
+		primaryKeyConstraintName: 'PK_activity_log',
+	})
 	public id: string;
 
-	@Index()
+	@Index('IDX_activity_log_at')
 	@Column('timestamptz')
 	public at: Date;
 
@@ -23,7 +26,7 @@ export class SkActivityLog {
 	})
 	public keyId: string;
 
-	@Index()
+	@Index('IDX_activity_log_host')
 	@Column('text')
 	public host: string;
 
@@ -54,12 +57,12 @@ export class SkActivityLog {
 	})
 	@JoinColumn({
 		name: 'context_hash',
+		foreignKeyConstraintName: 'FK_activity_log_context_hash',
 	})
 	public context: SkActivityContext | null;
 
 	@Column({
-		type: 'varchar' as const,
-		length: 32,
+		...id(),
 		name: 'auth_user_id',
 		nullable: true,
 	})
@@ -71,6 +74,7 @@ export class SkActivityLog {
 	})
 	@JoinColumn({
 		name: 'auth_user_id',
+		foreignKeyConstraintName: 'FK_activity_log_auth_user_id',
 	})
 	public authUser: MiUser | null;