diff --git a/src/main/kotlin/dev/usbharu/hideout/mastodon/infrastructure/springweb/MastodonApiControllerAdvice.kt b/src/main/kotlin/dev/usbharu/hideout/mastodon/infrastructure/springweb/MastodonApiControllerAdvice.kt
index 003b071f..b154f52b 100644
--- a/src/main/kotlin/dev/usbharu/hideout/mastodon/infrastructure/springweb/MastodonApiControllerAdvice.kt
+++ b/src/main/kotlin/dev/usbharu/hideout/mastodon/infrastructure/springweb/MastodonApiControllerAdvice.kt
@@ -19,6 +19,7 @@ package dev.usbharu.hideout.mastodon.infrastructure.springweb
 import dev.usbharu.hideout.domain.mastodon.model.generated.NotFoundResponse
 import dev.usbharu.hideout.domain.mastodon.model.generated.UnprocessableEntityResponse
 import dev.usbharu.hideout.domain.mastodon.model.generated.UnprocessableEntityResponseDetails
+import dev.usbharu.hideout.mastodon.domain.exception.AccountNotFoundException
 import dev.usbharu.hideout.mastodon.domain.exception.StatusNotFoundException
 import dev.usbharu.hideout.mastodon.interfaces.api.account.MastodonAccountApiController
 import dev.usbharu.hideout.mastodon.interfaces.api.apps.MastodonAppsApiController
@@ -98,6 +99,12 @@ class MastodonApiControllerAdvice {
         return ResponseEntity.status(HttpStatus.NOT_FOUND).body(ex.getTypedResponse().response)
     }
 
+    @ExceptionHandler(AccountNotFoundException::class)
+    fun handleException(ex: AccountNotFoundException): ResponseEntity<NotFoundResponse> {
+        logger.warn("Account not found.", ex)
+        return ResponseEntity.status(HttpStatus.NOT_FOUND).body(ex.getTypedResponse().response)
+    }
+
     companion object {
         private val logger = LoggerFactory.getLogger(MastodonApiControllerAdvice::class.java)
     }
diff --git a/src/main/kotlin/dev/usbharu/hideout/mastodon/service/account/AccountApiService.kt b/src/main/kotlin/dev/usbharu/hideout/mastodon/service/account/AccountApiService.kt
index 7c091999..c9f15567 100644
--- a/src/main/kotlin/dev/usbharu/hideout/mastodon/service/account/AccountApiService.kt
+++ b/src/main/kotlin/dev/usbharu/hideout/mastodon/service/account/AccountApiService.kt
@@ -152,7 +152,6 @@ class AccountApiServiceImpl(
                 return@transaction accountService.findById(id)
             }
         } catch (e: UserNotFoundException) {
-            logger.debug("Account Not found $id")
             throw AccountNotFoundException.ofId(id)
         }
     }