diff --git a/ui/src/jvmMain/kotlin/moe/lava/neon/ui/CaptchaBinder.jvm.kt b/ui/src/jvmMain/kotlin/moe/lava/neon/ui/CaptchaBinder.jvm.kt
index 2baf9c3..397f534 100644
--- a/ui/src/jvmMain/kotlin/moe/lava/neon/ui/CaptchaBinder.jvm.kt
+++ b/ui/src/jvmMain/kotlin/moe/lava/neon/ui/CaptchaBinder.jvm.kt
@@ -2,7 +2,12 @@ package moe.lava.neon.ui
 
 import androidx.compose.runtime.Composable
 import moe.lava.neon.core.api.ApiClient
+import moe.lava.neon.core.api.captcha.CaptchaResponse
 
 @Composable
 // TODO
-actual fun CaptchaBinder(api: ApiClient) { }
+actual fun CaptchaBinder(api: ApiClient) {
+    api.setCaptchaHandler {
+        CaptchaResponse.Failed(NotImplementedError())
+    }
+}