1 files changed, 5 insertions, 2 deletions

diff --git a/st.c b/st.c
index 8e25d23..ba6973a 100644
--- a/st.c
+++ b/st.c
@@ -1814,9 +1814,12 @@ tputc(char *c, int len) {
                 csireset();
                 term.esc = ESC_START;
                 return;
-        case '\016':    /* XXX: SO */
-        case '\017':    /* XXX: SI */
+        case '\016':    /* SO */
+                term.c.attr.mode |= ATTR_GFX;
                 break;
+        case '\017':    /* SI */
+                term.c.attr.mode &= ~ATTR_GFX;
+                return;
         case '\032':    /* SUB */
         case '\030':    /* CAN */
                 csireset();