diff --git a/error.go b/error.go
index 91c8a15620..5ddc9576af 100644
--- a/error.go
+++ b/error.go
@@ -29,14 +29,6 @@ const (
 	Missing       ErrorCode = "missing"
 	ProcessingErr ErrorCode = "processing_error"
 	RateLimit     ErrorCode = "rate_limit"
-
-	// These additional types are written purely for backward compatibility
-	// (the originals were given quite unsuitable names) and should be
-	// considered deprecated. Remove them on the next major version revision.
-
-	APIErr         ErrorType = ErrorTypeAPI
-	CardErr        ErrorType = ErrorTypeCard
-	InvalidRequest ErrorType = ErrorTypeInvalidRequest
 )
 
 // Error is the response returned when a call is unsuccessful.
diff --git a/error_test.go b/error_test.go
index 693579e4c5..e48ac3cfc4 100644
--- a/error_test.go
+++ b/error_test.go
@@ -18,7 +18,7 @@ func TestErrorResponse(t *testing.T) {
 	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		w.Header().Add("Request-Id", "req_123")
 		w.WriteHeader(http.StatusUnauthorized)
-		fmt.Fprintln(w, `{"error":{"message":"bar","type":"`+InvalidRequest+`"}}`)
+		fmt.Fprintln(w, `{"error":{"message":"bar","type":"`+ErrorTypeInvalidRequest+`"}}`)
 	}))
 	defer ts.Close()
 
@@ -32,7 +32,7 @@ func TestErrorResponse(t *testing.T) {
 	assert.Error(t, err)
 
 	stripeErr := err.(*Error)
-	assert.Equal(t, InvalidRequest, stripeErr.Type)
+	assert.Equal(t, ErrorTypeInvalidRequest, stripeErr.Type)
 	assert.Equal(t, "req_123", stripeErr.RequestID)
 	assert.Equal(t, 401, stripeErr.HTTPStatusCode)
 }