1 files changed, 1 insertions, 1 deletions

diff --git a/src/usr.bin/nc/atomicio.c b/src/usr.bin/nc/atomicio.c
index 9e732904ad..151dde0cf6 100644
--- a/src/usr.bin/nc/atomicio.c
+++ b/src/usr.bin/nc/atomicio.c
@@ -40,7 +40,7 @@ atomicio(ssize_t (*f) (int, void *, size_t), int fd, void *_s, size_t n)
         char *s = _s;
         ssize_t res, pos = 0;
 
-        while (n > pos) {
+        while (n > (size_t)pos) {
                 res = (f) (fd, s + pos, n - pos);
                 switch (res) {
                 case -1: