diff --git a/libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/kotlin/org/jetbrains/kotlin/gradle/IncrementalCompilationMultiProjectIT.kt b/libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/kotlin/org/jetbrains/kotlin/gradle/IncrementalCompilationMultiProjectIT.kt
index bd4b2728148..2425c7fa4a9 100644
--- a/libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/kotlin/org/jetbrains/kotlin/gradle/IncrementalCompilationMultiProjectIT.kt
+++ b/libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/kotlin/org/jetbrains/kotlin/gradle/IncrementalCompilationMultiProjectIT.kt
@@ -99,6 +99,44 @@ class IncrementalCompilationJvmMultiProjectIT : BaseIncrementalCompilationMultiP
             assertCompiledKotlinSources(relativePaths)
         }
     }
+
+    /** Regression test for KT-43489. Make sure build history mapping is not initialized too early. */
+    @Test
+    fun testBuildHistoryMappingLazilyComputedWithWorkers() {
+        val project = defaultProject()
+        project.setupWorkingDir()
+        project.projectDir.resolve("app/build.gradle").appendText(
+            """
+                // added to force eager configuration
+                tasks.withType(JavaCompile) {
+                    options.encoding = 'UTF-8'
+                }
+            """.trimIndent()
+        )
+        val options = defaultBuildOptions().copy(parallelTasksInProject = true)
+        project.build(options = options, params = arrayOf("build")) {
+            assertSuccessful()
+        }
+
+        val aKt = project.projectDir.getFileByName("A.kt")
+        aKt.writeText(
+            """
+package bar
+
+open class A {
+    fun a() {}
+    fun newA() {}
+}
+"""
+        )
+
+        project.build(options = options, params = arrayOf("build")) {
+            assertSuccessful()
+            val affectedSources = project.projectDir.getFilesByNames("A.kt", "B.kt", "AA.kt", "AAA.kt", "BB.kt")
+            val relativePaths = project.relativize(affectedSources)
+            assertCompiledKotlinSources(relativePaths)
+        }
+    }
 }
 
 abstract class BaseIncrementalCompilationMultiProjectIT : BaseGradleIT() {
diff --git a/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/tasks/Tasks.kt b/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/tasks/Tasks.kt
index 6357f14a8a3..86233d75273 100644
--- a/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/tasks/Tasks.kt
+++ b/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/tasks/Tasks.kt
@@ -323,6 +323,7 @@ abstract class AbstractKotlinCompile<T : CommonCompilerArguments>() : AbstractKo
 
     private val kotlinLogger by lazy { GradleKotlinLogger(logger) }
 
+    /** Keep lazy to avoid computing before all projects are evaluated. */
     @get:Internal
     internal val compilerRunner by lazy { compilerRunner() }
 
@@ -593,10 +594,7 @@ internal open class KotlinCompileWithWorkers @Inject constructor(
     private val workerExecutor: WorkerExecutor
 ) : KotlinCompile() {
 
-    @get:Internal
-    val compilerRunnerValue = GradleCompilerRunnerWithWorkers(GradleCompileTaskProvider(this), workerExecutor)
-
-    override fun compilerRunner() = compilerRunnerValue
+    override fun compilerRunner() = GradleCompilerRunnerWithWorkers(GradleCompileTaskProvider(this), workerExecutor)
 }
 
 @CacheableTask