diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..ec3455b
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,18 @@
+GOCMD=GO111MODULE=on go
+
+linters-install:
+	@golangci-lint --version >/dev/null 2>&1 || { \
+		echo "installing linting tools..."; \
+		curl -sfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh| sh -s v1.41.1; \
+	}
+
+lint: linters-install
+	golangci-lint run
+
+test:
+	$(GOCMD) test -cover -race ./...
+
+bench:
+	$(GOCMD) test -bench=. -benchmem ./...
+
+.PHONY: test lint linters-install
\ No newline at end of file
diff --git a/go.mod b/go.mod
index 8079590..9d08600 100644
--- a/go.mod
+++ b/go.mod
@@ -2,4 +2,4 @@ module github.com/go-playground/universal-translator
 
 go 1.13
 
-require github.com/go-playground/locales v0.13.0
+require github.com/go-playground/locales v0.14.0
diff --git a/go.sum b/go.sum
index cbbf324..20667ea 100644
--- a/go.sum
+++ b/go.sum
@@ -1,4 +1,7 @@
 github.com/go-playground/locales v0.13.0 h1:HyWk6mgj5qFqCT5fjGBuRArbVDfE4hi8+e8ceBS/t7Q=
 github.com/go-playground/locales v0.13.0/go.mod h1:taPMhCMXrRLJO55olJkUXHZBHCxTMfnGwq/HNwmWNS8=
+github.com/go-playground/locales v0.14.0 h1:u50s323jtVGugKlcYeyzC0etD1HifMjqmJqb8WugfUU=
+github.com/go-playground/locales v0.14.0/go.mod h1:sawfccIbzZTqEDETgFXqTho0QybSa7l++s0DH+LDiLs=
 golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
+golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
diff --git a/import_export_test.go b/import_export_test.go
index 5dbae2d..afee721 100644
--- a/import_export_test.go
+++ b/import_export_test.go
@@ -772,7 +772,10 @@ func TestBadExport(t *testing.T) {
 	}
 	defer os.RemoveAll(dirname)
 
-	en.Add("day", "this is a day", false)
+	err = en.Add("day", "this is a day", false)
+	if err != nil {
+		t.Fatalf("Expected '%v' Got '%s'", nil, err)
+	}
 
 	expected := "open testdata/readonly/en.json: permission denied"
 	err = uni.Export(FormatJSON, dirname)
diff --git a/translator.go b/translator.go
index cfafce8..24b18db 100644
--- a/translator.go
+++ b/translator.go
@@ -159,13 +159,13 @@ func (t *translator) AddCardinal(key interface{}, text string, rule locales.Plur
 		}
 
 	} else {
-		tarr = make([]*transText, 7, 7)
+		tarr = make([]*transText, 7)
 		t.cardinalTanslations[key] = tarr
 	}
 
 	trans := &transText{
 		text:    text,
-		indexes: make([]int, 2, 2),
+		indexes: make([]int, 2),
 	}
 
 	tarr[rule] = trans
@@ -211,13 +211,13 @@ func (t *translator) AddOrdinal(key interface{}, text string, rule locales.Plura
 		}
 
 	} else {
-		tarr = make([]*transText, 7, 7)
+		tarr = make([]*transText, 7)
 		t.ordinalTanslations[key] = tarr
 	}
 
 	trans := &transText{
 		text:    text,
-		indexes: make([]int, 2, 2),
+		indexes: make([]int, 2),
 	}
 
 	tarr[rule] = trans
@@ -261,13 +261,13 @@ func (t *translator) AddRange(key interface{}, text string, rule locales.PluralR
 		}
 
 	} else {
-		tarr = make([]*transText, 7, 7)
+		tarr = make([]*transText, 7)
 		t.rangeTanslations[key] = tarr
 	}
 
 	trans := &transText{
 		text:    text,
-		indexes: make([]int, 4, 4),
+		indexes: make([]int, 4),
 	}
 
 	tarr[rule] = trans