diff --git a/.travis.yml b/.travis.yml
index 6681615..2c4d1f0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,8 +1,11 @@
 language: go
 sudo: false
 go:
-  - 1.7.1
+  - 1.7.3
 before_install:
   - go get github.com/mattn/goveralls
+  - go get -u github.com/alecthomas/gometalinter
+  - gometalinter --install
 script:
-  - $HOME/gopath/bin/goveralls -service=travis-ci
\ No newline at end of file
+  - $HOME/gopath/bin/goveralls -service=travis-ci
+  - gometalinter ./...
\ No newline at end of file
diff --git a/goauto.go b/goauto.go
index 3f0b84f..caf7795 100644
--- a/goauto.go
+++ b/goauto.go
@@ -11,3 +11,7 @@ func AddThree(a, b, c int) int {
 func AddFour(a, b, c, d int) int {
 	return a + b + c + d
 }
+
+func AddFive(a, b, c, d, e int) int {
+	return a + b + c + d + e
+}
diff --git a/goauto_test.go b/goauto_test.go
index d96d882..878458d 100644
--- a/goauto_test.go
+++ b/goauto_test.go
@@ -26,4 +26,12 @@ func TestAddFour(t *testing.T) {
 	if got != want {
 		t.Errorf("got %d, want %d", got, want)
 	}
+}
+
+func TestAddFive(t *testing.T) {
+	got := AddFive(3, 7, 11, 13, 17)
+	want := 51
+	if got != want {
+		t.Errorf("got %d, want %d", got, want)
+	}
 }
\ No newline at end of file