diff --git a/libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/kotlin/org/jetbrains/kotlin/gradle/KaptIncrementalWithIsolatingApt.kt b/libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/kotlin/org/jetbrains/kotlin/gradle/KaptIncrementalWithIsolatingApt.kt
index c2122b2a1bb..2c4f9532e23 100644
--- a/libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/kotlin/org/jetbrains/kotlin/gradle/KaptIncrementalWithIsolatingApt.kt
+++ b/libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/kotlin/org/jetbrains/kotlin/gradle/KaptIncrementalWithIsolatingApt.kt
@@ -231,14 +231,20 @@ class KaptIncrementalWithIsolatingApt : KaptIncrementalIT() {
         """.trimIndent()
         )
 
-        val allKotlinStubs = setOf(
+        val annotatedKotlinStubs = setOf(
             project.projectDir.resolve("build/tmp/kapt3/stubs/main/foo/A.java").canonicalPath,
             project.projectDir.resolve("build/tmp/kapt3/stubs/main/bar/B.java").canonicalPath,
             project.projectDir.resolve("build/tmp/kapt3/stubs/main/bar/UseBKt.java").canonicalPath,
             project.projectDir.resolve("build/tmp/kapt3/stubs/main/baz/UtilKt.java").canonicalPath,
+            project.projectDir.resolve("build/tmp/kapt3/stubs/main/baz/UtilKt.java").canonicalPath,
             project.projectDir.resolve("build/tmp/kapt3/stubs/main/error/NonExistentClass.java").canonicalPath
         )
 
+        val allKotlinStubs = annotatedKotlinStubs + setOf(
+            project.projectDir.resolve("build/tmp/kapt3/stubs/main/delegate/Delegate.java").canonicalPath,
+            project.projectDir.resolve("build/tmp/kapt3/stubs/main/delegate/Usage.java").canonicalPath
+        )
+
         project.build("clean", "build") {
             assertSuccessful()
             assertEquals(allKotlinStubs + fileInWorkingDir("src/main/java/foo/JavaClass.java").canonicalPath, getProcessedSources(output))
@@ -248,7 +254,7 @@ class KaptIncrementalWithIsolatingApt : KaptIncrementalIT() {
         classpathTypeSource.writeText(classpathTypeSource.readText().replace("}", "int i = 10;\n}"))
         project.build("build") {
             assertSuccessful()
-            assertEquals(allKotlinStubs, getProcessedSources(output))
+            assertEquals(annotatedKotlinStubs, getProcessedSources(output))
         }
     }
 
@@ -432,4 +438,4 @@ fun BaseGradleIT.Project.generateProcessor(vararg processors: Pair<String, Class
         it.closeEntry()
     }
     return processorPath
-}
\ No newline at end of file
+}