diff --git a/include-build/roborazzi-gradle-plugin/src/main/java/io/github/takahirom/roborazzi/GenerateComposePreviewRobolectricTestsExtension.kt b/include-build/roborazzi-gradle-plugin/src/main/java/io/github/takahirom/roborazzi/GenerateComposePreviewRobolectricTestsExtension.kt
index c9644ccc..9f9e5082 100644
--- a/include-build/roborazzi-gradle-plugin/src/main/java/io/github/takahirom/roborazzi/GenerateComposePreviewRobolectricTestsExtension.kt
+++ b/include-build/roborazzi-gradle-plugin/src/main/java/io/github/takahirom/roborazzi/GenerateComposePreviewRobolectricTestsExtension.kt
@@ -93,8 +93,6 @@ private fun setupGenerateComposePreviewRobolectricTestsTask(
   robolectricConfig: MapProperty<String, String>,
   testTaskProvider: TaskCollection<Test>
 ) {
-  configureComposePreviewRobolectricTestPackagesIfNeeded(project, extension)
-
   val generateTestsTask = project.tasks.register(
     "generate${variant.name.capitalize(Locale.ROOT)}ComposePreviewRobolectricTests",
     GenerateComposePreviewRobolectricTestsTask::class.java
@@ -126,26 +124,6 @@ private fun setupGenerateComposePreviewRobolectricTestsTask(
   }
 }
 
-private fun configureComposePreviewRobolectricTestPackagesIfNeeded(
-  project: Project,
-  extension: GenerateComposePreviewRobolectricTestsExtension,
-) {
-  project.afterEvaluate {
-    extension.packages.getOrElse(listOf())
-    if(extension.enable.get() && extension.packages.get().orEmpty().isNotEmpty()) {
-      val android = project.extensions.findByType(CommonExtension::class.java)
-      android?.namespace?.let{
-
-        project.logger.warn(
-          "You may have forgotten to set roborazzi.generateComposePreviewRobolectricTests.packages. " +
-            "Roborazzi automatically set `android.namespace` (\"$it\") as the default value."
-        )
-        extension.packages.set(listOf(it))
-      }
-    }
-  }
-}
-
 abstract class GenerateComposePreviewRobolectricTestsTask : DefaultTask() {
   @get:OutputDirectory
   abstract val outputDir: DirectoryProperty