diff --git a/ecosystem/http/translate_error_code.go b/ecosystem/http/translate_error_code.go
index 28a0c65..9b3e445 100644
--- a/ecosystem/http/translate_error_code.go
+++ b/ecosystem/http/translate_error_code.go
@@ -32,6 +32,7 @@ func DefaultMapping() map[simplerr.Code]HTTPStatus {
 		simplerr.CodeNotImplemented:    http.StatusNotImplemented,
 		simplerr.CodeMalformedRequest:  http.StatusBadRequest,
 		simplerr.CodeInvalidArgument:   http.StatusUnprocessableEntity,
+		simplerr.CodeUnavailable:       http.StatusServiceUnavailable,
 		simplerr.CodeMissingParameter:  http.StatusUnprocessableEntity,
 		simplerr.CodeResourceExhausted: http.StatusTooManyRequests,
 	}
diff --git a/ecosystem/http/translate_error_code_test.go b/ecosystem/http/translate_error_code_test.go
index 29d3225..1269881 100644
--- a/ecosystem/http/translate_error_code_test.go
+++ b/ecosystem/http/translate_error_code_test.go
@@ -39,6 +39,7 @@ func (s *TestSuite) TestTranslateErrorCode() {
 		{fmt.Errorf("something"), http.StatusInternalServerError, false},
 		{simplerr.New("something").Code(simplerr.CodeUnknown), http.StatusInternalServerError, false},
 		{simplerr.New("something").Code(simplerr.CodePermissionDenied), http.StatusForbidden, true},
+		{simplerr.New("something").Code(simplerr.CodeUnavailable), http.StatusServiceUnavailable, true},
 		{simplerr.New("something").Code(simplerr.CodeCanceled), http.StatusRequestTimeout, true},
 		{simplerr.New("something").Code(simplerr.CodeConstraintViolated), http.StatusInternalServerError, false},
 		{simplerr.New("something").Code(simplerr.CodeMalformedRequest), http.StatusBadRequest, true},