diff --git a/paparazzi/paparazzi-gradle-plugin/src/main/java/app/cash/paparazzi/gradle/PaparazziPlugin.kt b/paparazzi/paparazzi-gradle-plugin/src/main/java/app/cash/paparazzi/gradle/PaparazziPlugin.kt
index d4c0118e74..e98bf1d935 100644
--- a/paparazzi/paparazzi-gradle-plugin/src/main/java/app/cash/paparazzi/gradle/PaparazziPlugin.kt
+++ b/paparazzi/paparazzi-gradle-plugin/src/main/java/app/cash/paparazzi/gradle/PaparazziPlugin.kt
@@ -28,10 +28,13 @@ import org.gradle.api.Project
 import org.gradle.api.Task
 import org.gradle.api.artifacts.type.ArtifactTypeDefinition
 import org.gradle.api.attributes.Attribute
+import org.gradle.api.file.Directory
+import org.gradle.api.file.DirectoryProperty
 import org.gradle.api.file.FileCollection
 import org.gradle.api.internal.artifacts.transform.UnzipTransform
 import org.gradle.api.logging.LogLevel.LIFECYCLE
 import org.gradle.api.plugins.JavaBasePlugin
+import org.gradle.api.provider.Provider
 import org.gradle.api.tasks.PathSensitivity
 import org.gradle.api.tasks.TaskProvider
 import org.gradle.api.tasks.options.Option
@@ -43,6 +46,7 @@ import org.jetbrains.kotlin.gradle.plugin.KotlinAndroidPluginWrapper
 import org.jetbrains.kotlin.gradle.plugin.KotlinMultiplatformPluginWrapper
 import org.jetbrains.kotlin.gradle.plugin.mpp.KotlinAndroidTarget
 import java.util.Locale
+import kotlin.io.path.invariantSeparatorsPathString
 
 @Suppress("unused")
 class PaparazziPlugin : Plugin<Project> {
@@ -95,18 +99,24 @@ class PaparazziPlugin : Plugin<Project> {
         "preparePaparazzi${variantSlug}Resources",
         PrepareResourcesTask::class.java
       ) { task ->
+        fun DirectoryProperty.asRelativePathString(childDirectory: Provider<Directory>): Provider<String> =
+          flatMap { buildDir ->
+            childDirectory.map {
+              childDir -> buildDir.asFile.toPath().relativize(childDir.asFile.toPath()).invariantSeparatorsPathString
+            }
+          }
+
         val android = project.extensions.getByType(BaseExtension::class.java)
         val nonTransitiveRClassEnabled =
           (project.findProperty("android.nonTransitiveRClass") as? String).toBoolean()
 
-        task.variantName.set(variant.name)
         task.packageName.set(android.packageName())
         task.artifactFiles.from(packageAwareArtifacts.artifactFiles)
         task.nonTransitiveRClassEnabled.set(nonTransitiveRClassEnabled)
-        task.mergeResourcesOutput.set(mergeResourcesOutputDir)
+        task.mergeResourcesOutput.set(project.layout.buildDirectory.asRelativePathString(mergeResourcesOutputDir))
         task.targetSdkVersion.set(android.targetSdkVersion())
         task.compileSdkVersion.set(android.compileSdkVersion())
-        task.mergeAssetsOutput.set(mergeAssetsOutputDir)
+        task.mergeAssetsOutput.set(project.layout.buildDirectory.asRelativePathString(mergeAssetsOutputDir))
         task.paparazziResources.set(project.layout.buildDirectory.file("intermediates/paparazzi/${variant.name}/resources.txt"))
       }
 
diff --git a/paparazzi/paparazzi-gradle-plugin/src/main/java/app/cash/paparazzi/gradle/PrepareResourcesTask.kt b/paparazzi/paparazzi-gradle-plugin/src/main/java/app/cash/paparazzi/gradle/PrepareResourcesTask.kt
index 5f23f597d6..88e6bc0f32 100644
--- a/paparazzi/paparazzi-gradle-plugin/src/main/java/app/cash/paparazzi/gradle/PrepareResourcesTask.kt
+++ b/paparazzi/paparazzi-gradle-plugin/src/main/java/app/cash/paparazzi/gradle/PrepareResourcesTask.kt
@@ -17,13 +17,10 @@ package app.cash.paparazzi.gradle
 
 import org.gradle.api.DefaultTask
 import org.gradle.api.file.ConfigurableFileCollection
-import org.gradle.api.file.Directory
-import org.gradle.api.file.DirectoryProperty
 import org.gradle.api.file.RegularFileProperty
 import org.gradle.api.provider.Property
 import org.gradle.api.tasks.CacheableTask
 import org.gradle.api.tasks.Input
-import org.gradle.api.tasks.InputDirectory
 import org.gradle.api.tasks.InputFiles
 import org.gradle.api.tasks.OutputFile
 import org.gradle.api.tasks.PathSensitive
@@ -32,15 +29,12 @@ import org.gradle.api.tasks.TaskAction
 
 @CacheableTask
 abstract class PrepareResourcesTask : DefaultTask() {
-  @get:Input
-  abstract val variantName: Property<String>
 
   @get:Input
   abstract val packageName: Property<String>
 
-  @get:InputDirectory
-  @get:PathSensitive(PathSensitivity.RELATIVE)
-  abstract val mergeResourcesOutput: DirectoryProperty
+  @get:Input
+  abstract val mergeResourcesOutput: Property<String>
 
   @get:Input
   abstract val targetSdkVersion: Property<String>
@@ -48,9 +42,8 @@ abstract class PrepareResourcesTask : DefaultTask() {
   @get:Input
   abstract val compileSdkVersion: Property<String>
 
-  @get:InputDirectory
-  @get:PathSensitive(PathSensitivity.RELATIVE)
-  abstract val mergeAssetsOutput: DirectoryProperty
+  @get:Input
+  abstract val mergeAssetsOutput: Property<String>
 
   @get:Input
   abstract val nonTransitiveRClassEnabled: Property<Boolean>
@@ -62,8 +55,6 @@ abstract class PrepareResourcesTask : DefaultTask() {
   @get:OutputFile
   abstract val paparazziResources: RegularFileProperty
 
-  private val buildDirectory = project.layout.buildDirectory
-
   @TaskAction
   // TODO: figure out why this can't be removed as of Kotlin 1.6+
   @OptIn(ExperimentalStdlibApi::class)
@@ -82,27 +73,22 @@ abstract class PrepareResourcesTask : DefaultTask() {
     } else {
       mainPackage
     }
-    val projectDirectory = buildDirectory.get()
 
     out.bufferedWriter()
       .use {
         it.write(mainPackage)
         it.newLine()
-        it.write(projectDirectory.relativize(mergeResourcesOutput.get()))
+        it.write(mergeResourcesOutput.get())
         it.newLine()
         it.write(targetSdkVersion.get())
         it.newLine()
         // Use compileSdkVersion for system framework resources.
         it.write("platforms/android-${compileSdkVersion.get()}/")
         it.newLine()
-        it.write(projectDirectory.relativize(mergeAssetsOutput.get()))
+        it.write(mergeAssetsOutput.get())
         it.newLine()
         it.write(resourcePackageNames)
         it.newLine()
       }
   }
-
-  private fun Directory.relativize(child: Directory): String {
-    return asFile.toPath().relativize(child.asFile.toPath()).toFile().invariantSeparatorsPath
-  }
 }