diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 3d2afc9..d1ed5f6 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -13,10 +13,14 @@
         tools:targetApi="31">
         <activity
             android:name=".SignInActivity"
-            android:exported="false" />
+            android:exported="false"
+            android:noHistory="true"
+            />
         <activity
             android:name=".SignUpActivity"
-            android:exported="false" />
+            android:exported="false"
+            android:noHistory="true"
+            />
         <activity
             android:name=".SplashScreenActivity"
             android:exported="true">
diff --git a/app/src/main/java/com/capstone/foodify/SignUpActivity.java b/app/src/main/java/com/capstone/foodify/SignUpActivity.java
index 9f960b9..b6e9fa4 100644
--- a/app/src/main/java/com/capstone/foodify/SignUpActivity.java
+++ b/app/src/main/java/com/capstone/foodify/SignUpActivity.java
@@ -63,8 +63,6 @@ public class SignUpActivity extends AppCompatActivity {
         });
     }
 
-
-
     private void listWardAndDistrict() {
         wardSpinner = (Spinner) findViewById(R.id.ward);
         districtSpinner = (Spinner) findViewById(R.id.district);