1 files changed, 3 insertions, 0 deletions
diff --git a/ui/src/main/java/com/wireguard/android/widget/KeyInputFilter.java b/ui/src/main/java/com/wireguard/android/widget/KeyInputFilter.java
index 79572aa3..c91b12ff 100644
--- a/ui/src/main/java/com/wireguard/android/widget/KeyInputFilter.java
+++ b/ui/src/main/java/com/wireguard/android/widget/KeyInputFilter.java
@@ -5,6 +5,8 @@
 
 package com.wireguard.android.widget;
 
+import com.wireguard.util.NonNullForAll;
+
 import androidx.annotation.Nullable;
 import android.text.InputFilter;
 import android.text.SpannableStringBuilder;
@@ -16,6 +18,7 @@ import com.wireguard.crypto.Key;
  * InputFilter for entering WireGuard private/public keys encoded with base64.
  */
 
+@NonNullForAll
 public class KeyInputFilter implements InputFilter {
     private static boolean isAllowed(final char c) {
         return Character.isLetterOrDigit(c) || c == '+' || c == '/';