diff --git a/pkg/driver/postgres/postgres.go b/pkg/driver/postgres/postgres.go
index 50b2cf6..60b1333 100644
--- a/pkg/driver/postgres/postgres.go
+++ b/pkg/driver/postgres/postgres.go
@@ -50,12 +50,12 @@ func connectionString(u *url.URL) string {
 	// default hostname
 	if hostname == "" {
 		switch runtime.GOOS {
-		case "windows":
-			hostname = "localhost"
 		case "linux":
 			query.Set("host", "/var/run/postgresql")
-		default:
+		case "darwin", "freebsd", "dragonfly", "openbsd", "netbsd":
 			query.Set("host", "/tmp")
+		default:
+			hostname = "localhost"
 		}
 	}
 
diff --git a/pkg/driver/postgres/postgres_test.go b/pkg/driver/postgres/postgres_test.go
index 1789186..1a49ce0 100644
--- a/pkg/driver/postgres/postgres_test.go
+++ b/pkg/driver/postgres/postgres_test.go
@@ -53,12 +53,12 @@ func TestGetDriver(t *testing.T) {
 
 func defaultConnString() string {
 	switch runtime.GOOS {
-	case "windows":
-		return "postgres://localhost:5432/foo"
 	case "linux":
 		return "postgres://:5432/foo?host=%2Fvar%2Frun%2Fpostgresql"
-	default:
+	case "darwin", "freebsd", "dragonfly", "openbsd", "netbsd":
 		return "postgres://:5432/foo?host=%2Ftmp"
+	default:
+		return "postgres://localhost:5432/foo"
 	}
 }