1 files changed, 1 insertions, 1 deletions

diff --git a/st.c b/st.c
index 297eb3f..cacbe20 100644
--- a/st.c
+++ b/st.c
@@ -2298,7 +2298,7 @@ techo(char *buf, int len) {
         for(; len > 0; buf++, len--) {
                 char c = *buf;
 
-                if(c < 0x20 || c == 0177) { /* control code */
+                if(BETWEEN(c, 0x00, 0x1f) || c == 0x7f) { /* control code */
                         if(c != '\n' && c != '\r' && c != '\t') {
                                 c ^= '\x40';
                                 tputc("^", 1);