diff --git a/.travis.yml b/.travis.yml
index 12f56590..b145f85c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -28,6 +28,8 @@ matrix:
       - ./hash src/test/resources/siva || travis_terminate 1
       - ./query ./LICENSE
       - ./report
+      - go get ./src/main/go/...
+      - go run ./src/main/go/query.go ./LICENSE
     before_deploy:
       - VERSION=$TRAVIS_TAG ./scripts/release.sh
     deploy:
diff --git a/src/main/go/query.go b/src/main/go/query.go
index bc5093a7..e2e1d5d0 100644
--- a/src/main/go/query.go
+++ b/src/main/go/query.go
@@ -53,12 +53,16 @@ func main() {
 
 	var similarHashes []BlobHash
 	if err := gocqlx.Select(&similarHashes, q.Query); err != nil {
-		log.Fatal("select:", err)
+		log.Fatalf("select: %v in %s", err, q.Query)
 	}
 
 	for _, hash := range similarHashes {
 		fmt.Printf("\t%+v\n", hash)
 	}
+
+	if len(similarHashes) == 0 {
+		os.Exit(2)
+	}
 }
 
 // connect to the cluster