diff --git a/src/models/Donation.ts b/src/models/Donation.ts
index 3d59202..7143c99 100644
--- a/src/models/Donation.ts
+++ b/src/models/Donation.ts
@@ -1,4 +1,4 @@
-import { PrimaryGeneratedColumn, Column, ManyToOne } from "typeorm";
+import { PrimaryGeneratedColumn, Column, ManyToOne, Entity } from "typeorm";
 import {
   IsInt,
   IsNotEmpty,
@@ -10,6 +10,7 @@ import { Participant } from "./Participant";
 /**
  * Defines the donation interface.
 */
+@Entity()
 export abstract class Donation {
   /**
    * Autogenerated unique id (primary key).
diff --git a/src/models/Participant.ts b/src/models/Participant.ts
index 0465e01..2f4327b 100644
--- a/src/models/Participant.ts
+++ b/src/models/Participant.ts
@@ -1,4 +1,4 @@
-import { PrimaryGeneratedColumn, Column, OneToMany, ManyToOne } from "typeorm";
+import { PrimaryGeneratedColumn, Column, OneToMany, ManyToOne, Entity } from "typeorm";
 import {
   IsEmail,
   IsInt,
@@ -13,6 +13,7 @@ import { Donation } from "./Donation";
 /**
  * Defines the participant interface.
 */
+@Entity()
 export abstract class Participant {
   /**
    * Autogenerated unique id (primary key).
diff --git a/src/models/RunnerGroup.ts b/src/models/RunnerGroup.ts
index 8f4c5ea..52f478f 100644
--- a/src/models/RunnerGroup.ts
+++ b/src/models/RunnerGroup.ts
@@ -1,4 +1,4 @@
-import { PrimaryGeneratedColumn, Column, OneToMany, ManyToOne } from "typeorm";
+import { PrimaryGeneratedColumn, Column, OneToMany, ManyToOne, Entity } from "typeorm";
 import {
   IsInt,
   IsNotEmpty,
@@ -12,6 +12,7 @@ import { RunnerTeam } from "./RunnerTeam";
 /**
  * Defines the runnerGroup interface.
 */
+@Entity()
 export abstract class RunnerGroup {
   /**
    * Autogenerated unique id (primary key).
diff --git a/src/models/Scan.ts b/src/models/Scan.ts
index 6e3f654..6c2dccc 100644
--- a/src/models/Scan.ts
+++ b/src/models/Scan.ts
@@ -1,4 +1,4 @@
-import { PrimaryGeneratedColumn, Column, ManyToOne } from "typeorm";
+import { PrimaryGeneratedColumn, Column, ManyToOne, Entity } from "typeorm";
 import {
   IsBoolean,
   IsInt,
@@ -11,6 +11,7 @@ import { Runner } from "./Runner";
 /**
  * Defines the scan interface.
 */
+@Entity()
 export abstract class Scan {
   /**
    * Autogenerated unique id (primary key).
diff --git a/src/models/TrackScan.ts b/src/models/TrackScan.ts
index 0f08d2a..ce35ee8 100644
--- a/src/models/TrackScan.ts
+++ b/src/models/TrackScan.ts
@@ -1,4 +1,4 @@
-import { PrimaryGeneratedColumn, Column, ManyToOne } from "typeorm";
+import { PrimaryGeneratedColumn, Column, ManyToOne, Entity } from "typeorm";
 import {
   IsBoolean,
   IsDateString,
@@ -16,6 +16,7 @@ import { ScanStation } from "./ScanStation";
 /**
  * Defines the scan interface.
 */
+@Entity()
 export class TrackScan extends Scan {
   /**
    * The associated track.