diff --git a/app/src/main/java/com/wireguard/config/Attribute.java b/app/src/main/java/com/wireguard/config/Attribute.java
index be068e80..0f89cc94 100644
--- a/app/src/main/java/com/wireguard/config/Attribute.java
+++ b/app/src/main/java/com/wireguard/config/Attribute.java
@@ -6,6 +6,7 @@
 
 package com.wireguard.config;
 
+import android.annotation.SuppressLint;
 import android.support.annotation.Nullable;
 import android.text.TextUtils;
 
@@ -66,10 +67,12 @@ public enum Attribute {
         return LIST_SEPARATOR_PATTERN.split(string.trim());
     }
 
+    @SuppressLint("DefaultLocale")
     public String composeWith(@Nullable final Object value) {
         return String.format("%s = %s%n", token, value);
     }
 
+    @SuppressLint("DefaultLocale")
     public String composeWith(final int value) {
         return String.format("%s = %d%n", token, value);
     }
diff --git a/app/src/main/java/com/wireguard/config/Peer.java b/app/src/main/java/com/wireguard/config/Peer.java
index 1ed615e6..8fcaf6ee 100644
--- a/app/src/main/java/com/wireguard/config/Peer.java
+++ b/app/src/main/java/com/wireguard/config/Peer.java
@@ -6,6 +6,7 @@
 
 package com.wireguard.config;
 
+import android.annotation.SuppressLint;
 import android.content.Context;
 import android.databinding.BaseObservable;
 import android.databinding.Bindable;
@@ -71,6 +72,7 @@ public class Peer {
         return endpoint;
     }
 
+    @SuppressLint("DefaultLocale")
     @Nullable
     private String getEndpointString() {
         if (endpoint == null)
@@ -102,6 +104,7 @@ public class Peer {
         return publicKey;
     }
 
+    @SuppressLint("DefaultLocale")
     public String getResolvedEndpointString() throws UnknownHostException {
         if (endpoint == null)
             throw new UnknownHostException("{empty}");