diff --git a/app/src/main/java/com/eatssu/android/data/remote/repository/UserRepositoryImpl.kt b/app/src/main/java/com/eatssu/android/data/remote/repository/UserRepositoryImpl.kt
index 37e13413..f8b3bb1d 100644
--- a/app/src/main/java/com/eatssu/android/data/remote/repository/UserRepositoryImpl.kt
+++ b/app/src/main/java/com/eatssu/android/data/remote/repository/UserRepositoryImpl.kt
@@ -33,7 +33,7 @@ class UserRepositoryImpl @Inject constructor(
                     Result.success(Unit)
                 } else {
                     Result.failure(
-                        Exception("올바르지 않은 닉네임이에요.")
+                        Exception("이미 사용 중인 닉네임이에요.")
                     )
                 }
             }