diff --git a/querydsl-examples/querydsl-example-kotlin-codegen/src/main/kotlin/com/querydsl/examples/kotlin/entity/ExampleBaseEntity.kt b/querydsl-examples/querydsl-example-kotlin-codegen/src/main/kotlin/com/querydsl/examples/kotlin/entity/ExampleBaseEntity.kt
new file mode 100644
index 000000000..24c52a22d
--- /dev/null
+++ b/querydsl-examples/querydsl-example-kotlin-codegen/src/main/kotlin/com/querydsl/examples/kotlin/entity/ExampleBaseEntity.kt
@@ -0,0 +1,15 @@
+package com.querydsl.examples.kotlin.entity
+
+import jakarta.persistence.GeneratedValue
+import jakarta.persistence.GenerationType
+import jakarta.persistence.Id
+import jakarta.persistence.MappedSuperclass
+import java.io.Serializable
+
+@MappedSuperclass
+abstract class ExampleBaseEntity<ID : Serializable> {
+
+	@field:Id
+	@field:GeneratedValue(strategy = GenerationType.AUTO)
+	var id: ID? = null
+}
\ No newline at end of file
diff --git a/querydsl-examples/querydsl-example-kotlin-codegen/src/main/kotlin/com/querydsl/examples/kotlin/entity/ExampleEntity.kt b/querydsl-examples/querydsl-example-kotlin-codegen/src/main/kotlin/com/querydsl/examples/kotlin/entity/ExampleEntity.kt
index 778ff4ee7..185eea970 100644
--- a/querydsl-examples/querydsl-example-kotlin-codegen/src/main/kotlin/com/querydsl/examples/kotlin/entity/ExampleEntity.kt
+++ b/querydsl-examples/querydsl-example-kotlin-codegen/src/main/kotlin/com/querydsl/examples/kotlin/entity/ExampleEntity.kt
@@ -20,10 +20,6 @@ import jakarta.persistence.*
 
 @Entity
 data class ExampleEntity(
-        @Id
-        @GeneratedValue(strategy = GenerationType.AUTO)
-        val id: Int,
-
         @Column
         val name: String,
 
@@ -36,5 +32,5 @@ data class ExampleEntity(
         @Convert(converter = MapConverter::class)
         @Column(columnDefinition = "jsonb")
         val metadata: Map<String, Any> = mutableMapOf(),
-) {
+) : ExampleBaseEntity<Int>() {
 }