1 files changed, 3 insertions, 1 deletions
diff --git a/main/src/cgeo/contacts/ContactsAddon.java b/main/src/cgeo/contacts/ContactsAddon.java
index 7165a77..6c0dd21 100644
--- a/main/src/cgeo/contacts/ContactsAddon.java
+++ b/main/src/cgeo/contacts/ContactsAddon.java
@@ -3,6 +3,8 @@ package cgeo.contacts;
 import cgeo.geocaching.network.Parameters;
 import cgeo.geocaching.utils.ProcessUtils;
 
+import org.eclipse.jdt.annotation.NonNull;
+
 import android.app.Activity;
 import android.content.Intent;
 import android.net.Uri;
@@ -13,7 +15,7 @@ public class ContactsAddon {
         // utility class
     }
 
-    public static void openContactCard(Activity context, String userName) {
+    public static void openContactCard(@NonNull final Activity context, @NonNull final String userName) {
         final Parameters params = new Parameters(
                 IContacts.PARAM_NAME, userName
                 );