diff --git a/include-build/roborazzi-core/src/commonJvmMain/kotlin/com/github/takahirom/roborazzi/ImageIoFormat.commonJvm.kt b/include-build/roborazzi-core/src/commonJvmMain/kotlin/com/github/takahirom/roborazzi/ImageIoFormat.commonJvm.kt
index c40cb3216..1c2f1ae3f 100644
--- a/include-build/roborazzi-core/src/commonJvmMain/kotlin/com/github/takahirom/roborazzi/ImageIoFormat.commonJvm.kt
+++ b/include-build/roborazzi-core/src/commonJvmMain/kotlin/com/github/takahirom/roborazzi/ImageIoFormat.commonJvm.kt
@@ -15,7 +15,7 @@ import javax.imageio.metadata.IIOMetadataNode
 import javax.imageio.stream.FileImageOutputStream
 
 @Suppress("FunctionName")
-actual fun WebPImageIoFormat(): ImageIoFormat {
+actual fun LosslessWebPImageIoFormat(): ImageIoFormat {
   return JvmImageIoFormat(
     awtImageWriter = losslessWebPWriter()
   )
diff --git a/include-build/roborazzi-core/src/commonMain/kotlin/com/github/takahirom/roborazzi/ImageIoFormat.kt b/include-build/roborazzi-core/src/commonMain/kotlin/com/github/takahirom/roborazzi/ImageIoFormat.kt
index ad550584a..2852346fd 100644
--- a/include-build/roborazzi-core/src/commonMain/kotlin/com/github/takahirom/roborazzi/ImageIoFormat.kt
+++ b/include-build/roborazzi-core/src/commonMain/kotlin/com/github/takahirom/roborazzi/ImageIoFormat.kt
@@ -3,6 +3,6 @@ package com.github.takahirom.roborazzi
 interface ImageIoFormat
 
 @Suppress("FunctionName")
-expect fun WebPImageIoFormat() : ImageIoFormat
+expect fun LosslessWebPImageIoFormat() : ImageIoFormat
 
 expect fun ImageIoFormat() : ImageIoFormat
\ No newline at end of file
diff --git a/include-build/roborazzi-core/src/iosMain/kotlin/com/github/takahirom/roborazzi/ImageIoFormat.ios.kt b/include-build/roborazzi-core/src/iosMain/kotlin/com/github/takahirom/roborazzi/ImageIoFormat.ios.kt
index 66fddb8f0..fcd0d53d1 100644
--- a/include-build/roborazzi-core/src/iosMain/kotlin/com/github/takahirom/roborazzi/ImageIoFormat.ios.kt
+++ b/include-build/roborazzi-core/src/iosMain/kotlin/com/github/takahirom/roborazzi/ImageIoFormat.ios.kt
@@ -1,7 +1,7 @@
 package com.github.takahirom.roborazzi
 
 @Suppress("FunctionName")
-actual fun WebPImageIoFormat(): ImageIoFormat {
+actual fun LosslessWebPImageIoFormat(): ImageIoFormat {
   TODO("NOT IMPLEMENTED YET")
 }
 
diff --git a/sample-android/src/test/java/com/github/takahirom/roborazzi/sample/boxed/LosslessWebpTest.kt b/sample-android/src/test/java/com/github/takahirom/roborazzi/sample/boxed/LosslessWebpTest.kt
index 23f1df75d..b87afce4d 100644
--- a/sample-android/src/test/java/com/github/takahirom/roborazzi/sample/boxed/LosslessWebpTest.kt
+++ b/sample-android/src/test/java/com/github/takahirom/roborazzi/sample/boxed/LosslessWebpTest.kt
@@ -11,7 +11,7 @@ import com.github.takahirom.roborazzi.ROBORAZZI_DEBUG
 import com.github.takahirom.roborazzi.RobolectricDeviceQualifiers
 import com.github.takahirom.roborazzi.RoborazziOptions
 import com.github.takahirom.roborazzi.RoborazziTaskType
-import com.github.takahirom.roborazzi.WebPImageIoFormat
+import com.github.takahirom.roborazzi.LosslessWebPImageIoFormat
 import com.github.takahirom.roborazzi.captureRoboImage
 import com.github.takahirom.roborazzi.nameWithoutExtension
 import com.github.takahirom.roborazzi.provideRoborazziContext
@@ -35,7 +35,7 @@ class LosslessWebpTest {
   @get:Rule
   val composeTestRule = createAndroidComposeRule<MainActivity>()
   val recordOptions = RoborazziOptions.RecordOptions(
-    imageIoFormat = WebPImageIoFormat(),
+    imageIoFormat = LosslessWebPImageIoFormat(),
   )
 
   @Test