1 files changed, 1 insertions, 1 deletions
diff --git a/print-ip.c b/print-ip.c
index 8b263ccc..e1085e96 100644
--- a/print-ip.c
+++ b/print-ip.c
@@ -138,7 +138,7 @@ trunc:
 /*
  * Compute a V4-style checksum by building a pseudoheader.
  */
-int
+uint16_t
 nextproto4_cksum(netdissect_options *ndo,
                  const struct ip *ip, const uint8_t *data,
                  u_int len, u_int covlen, u_int next_proto)