%zu is not universally available

diff --git a/bin/tests/system/rndc/gencheck.c b/bin/tests/system/rndc/gencheck.c
index d72078782a481863bbb96d44455ee1e70ce6d759..df03aaa0f890668f7feb0226953e9d093d299159 100644 (file)
--- a/bin/tests/system/rndc/gencheck.c
+++ b/bin/tests/system/rndc/gencheck.c
@@ -79,7 +79,7 @@ main(int argc, char **argv)
        ret = EXIT_SUCCESS;
 
  out:
-       printf("%zu\n", length);
+       printf("%lu\n", (unsigned long)length);
 
        if (fd != -1)
                close(fd);