1 files changed, 1 insertions, 1 deletions
diff --git a/set_ui.c b/set_ui.c
index c26ebcb23..e3e0d3432 100644
--- a/set_ui.c
+++ b/set_ui.c
@@ -57,7 +57,7 @@ mpfr_set_ui (x, i, rnd_mode)
     MPFR_EXP(x) = nbits = BITS_PER_MP_LIMB - cnt;
     inex = mpfr_check_range(x, rnd_mode);
     if (inex)
-      return inex;
+      return inex; /* underflow or overflow */
 
     /* round if MPFR_PREC(x) smaller than length of i */
     if (MPFR_PREC(x) < nbits)