1 files changed, 2 insertions, 2 deletions

diff --git a/archival/gzip.c b/archival/gzip.c
index 1e56c9dec..71505698c 100644
--- a/archival/gzip.c
+++ b/archival/gzip.c
@@ -1173,7 +1173,7 @@ static void gen_codes(ct_data * tree, int max_code)
 
                 Tracec(tree != G2.static_ltree,
                            (stderr, "\nn %3d %c l %2d c %4x (%x) ", n,
-                                (isgraph(n) ? n : ' '), len, tree[n].Code,
+                                (n > ' ' ? n : ' '), len, tree[n].Code,
                                 next_code[len] - 1));
         }
 }
@@ -1541,7 +1541,7 @@ static void compress_block(ct_data * ltree, ct_data * dtree)
                 lc = G1.l_buf[lx++];
                 if ((flag & 1) == 0) {
                         SEND_CODE(lc, ltree);   /* send a literal byte */
-                        Tracecv(isgraph(lc), (stderr, " '%c' ", lc));
+                        Tracecv(lc > ' ', (stderr, " '%c' ", lc));
                 } else {
                         /* Here, lc is the match length - MIN_MATCH */
                         code = G2.length_code[lc];