diff --git a/src/models/Scan.ts b/src/models/Scan.ts
index 51d71c3..8fb7215 100644
--- a/src/models/Scan.ts
+++ b/src/models/Scan.ts
@@ -33,4 +33,11 @@ export abstract class Scan {
   @IsInt()
   @IsPositive()
   abstract distance: number;
+
+    /**
+   * Is the scan valid (for fraud reasons).
+   */
+  @Column()
+  @Boolean()
+  valid = true;
 }
diff --git a/src/models/TrackScan.ts b/src/models/TrackScan.ts
index 5eeb1bf..3691cf1 100644
--- a/src/models/TrackScan.ts
+++ b/src/models/TrackScan.ts
@@ -17,14 +17,6 @@ import { ScanStation } from "./ScanStation";
  * Defines the scan interface.
 */
 export class TrackScan extends Scan {
-  /**
-   * Autogenerated unique id (primary key).
-   */
-  @PrimaryGeneratedColumn()
-  @IsOptional()
-  @IsInt()
-  id: number;
-
   /**
    * The associated track.
    */
@@ -65,11 +57,4 @@ export class TrackScan extends Scan {
   @IsDateString()
   @IsNotEmpty()
   timestamp: string;
-
-  /**
-   * Is the scan valid (for fraud reasons).
-   */
-  @Column()
-  @IsBoolean()
-  valid = true;
 }