diff --git a/java/com/android/contacts/common/AndroidManifest.xml b/java/com/android/contacts/common/AndroidManifest.xml
index e972215..84ac96f 100644
--- a/java/com/android/contacts/common/AndroidManifest.xml
+++ b/java/com/android/contacts/common/AndroidManifest.xml
@@ -21,6 +21,7 @@
     <activity
       android:name="com.android.contacts.common.dialog.CallSubjectDialog"
       android:theme="@style/Theme.CallSubjectDialogTheme"
+      android:exported="false"
       android:windowSoftInputMode="stateVisible|adjustResize">
       <intent-filter>
         <action android:name="android.intent.action.VIEW"/>