1 files changed, 1 insertions, 1 deletions

diff --git a/src/fsec-optimize/main.c b/src/fsec-optimize/main.c
index d78d80c67..f4300f350 100644
--- a/src/fsec-optimize/main.c
+++ b/src/fsec-optimize/main.c
@@ -78,7 +78,7 @@ printf("\n");
                 return 1;
         }
         size = write(fd, outfilter, entries * sizeof(struct sock_filter));
-        if (size != entries * sizeof(struct sock_filter)) {
+        if (size != (int) (entries * sizeof(struct sock_filter))) {
                 fprintf(stderr, "Error: cannot write output file\n");
                 return 1;
         }