1 files changed, 3 insertions, 1 deletions
diff --git a/main/src/cgeo/geocaching/connector/capability/ISearchByViewPort.java b/main/src/cgeo/geocaching/connector/capability/ISearchByViewPort.java
index 4954017..c04e9ed 100644
--- a/main/src/cgeo/geocaching/connector/capability/ISearchByViewPort.java
+++ b/main/src/cgeo/geocaching/connector/capability/ISearchByViewPort.java
@@ -4,6 +4,8 @@ import cgeo.geocaching.SearchResult;
 import cgeo.geocaching.connector.IConnector;
 import cgeo.geocaching.geopoint.Viewport;
 
+import org.eclipse.jdt.annotation.NonNull;
+
 public interface ISearchByViewPort extends IConnector {
-    public SearchResult searchByViewport(final Viewport viewport, final String[] tokens);
+    public SearchResult searchByViewport(final @NonNull Viewport viewport, final String[] tokens);
 }