diff --git a/app/src/main/java/org/android/go/sopt/presentation/auth/SignUpViewModel.kt b/app/src/main/java/org/android/go/sopt/presentation/auth/SignUpViewModel.kt
index 7c9c9a6..97601b1 100644
--- a/app/src/main/java/org/android/go/sopt/presentation/auth/SignUpViewModel.kt
+++ b/app/src/main/java/org/android/go/sopt/presentation/auth/SignUpViewModel.kt
@@ -27,7 +27,7 @@ class SignUpViewModel : ViewModel() {
     val isIdValid: LiveData<Boolean> = Transformations.map(idText) { checkIdValid(it) }
     val isPwValid: LiveData<Boolean> = Transformations.map(pwText) { checkPwValid(it) }
 
-    val buttonValid: MutableLiveData<Boolean> = MutableLiveData(false)
+    val isButtonValid: MutableLiveData<Boolean> = MutableLiveData(false)
 
     fun signUp(id: String, password: String, name: String, skill: String) {
         AuthServicePool.authService.signUp(
@@ -66,7 +66,7 @@ class SignUpViewModel : ViewModel() {
     }
 
     fun setButtonState() {
-        buttonValid.value =
+        isButtonValid.value =
             (isIdValid.value == true && isPwValid.value == true && idText.value!!.isNotBlank() && pwText.value!!.isNotBlank())
     }
 
diff --git a/app/src/main/res/layout/activity_sign_up.xml b/app/src/main/res/layout/activity_sign_up.xml
index c0badf8..0ba2c7a 100644
--- a/app/src/main/res/layout/activity_sign_up.xml
+++ b/app/src/main/res/layout/activity_sign_up.xml
@@ -178,8 +178,7 @@
                 android:layout_height="wrap_content"
                 android:layout_marginHorizontal="30dp"
                 android:layout_marginVertical="20dp"
-                android:enabled="@{vm.buttonValid}"
-                android:onClick=""
+                android:enabled="@{vm.isButtonValid}"
                 android:paddingVertical="10dp"
                 android:text="@string/btn_login_sign_up"
                 android:textSize="15sp"