all: Use MP_ERROR_TEXT for all error messages.

1 files changed, 1 insertions, 1 deletions

diff --git a/examples/natmod/features1/features1.c b/examples/natmod/features1/features1.c
index 1bfbe50b9..f865f1887 100644
--- a/examples/natmod/features1/features1.c
+++ b/examples/natmod/features1/features1.c
@@ -45,7 +45,7 @@ STATIC mp_int_t fibonacci_helper(mp_int_t x) {
 STATIC mp_obj_t fibonacci(mp_obj_t x_in) {
     mp_int_t x = mp_obj_get_int(x_in);
     if (x < 0) {
-        mp_raise_ValueError("can't compute negative Fibonacci number");
+        mp_raise_ValueError(MP_ERROR_TEXT("can't compute negative Fibonacci number"));
     }
     return mp_obj_new_int(fibonacci_helper(x));
 }