1 files changed, 1 insertions, 1 deletions
diff --git a/mpfr.c b/mpfr.c
index 8a5e9a69..ec8d5561 100644
--- a/mpfr.c
+++ b/mpfr.c
@@ -303,7 +303,7 @@ force_mpnum(NODE *n, int do_nondec, int use_locale)
 		cp1 = cp;
 
 	if (do_nondec)
-		base = get_numbase(cp1, use_locale);
+		base = get_numbase(cp1, cpend - cp1, use_locale);
 
 	if (! mpg_maybe_float(cp1, use_locale)) {
 		mpg_zero(n);