diff --git a/csi.c b/csi.c
index edc5cc30..e4b1b4a5 100644
--- a/csi.c
+++ b/csi.c
@@ -1127,12 +1127,14 @@ csi_dispatch(struct terminal *term, uint8_t final)
         case 's':
             for (size_t i = 0; i < term->vt.params.idx; i++) {
                 switch (term->vt.params.v[i].value) {
+#if 0  /* We don't implement "highlight mouse tracking" */
                 case 1001:  /* save old highlight mouse tracking mode? */
                     LOG_WARN(
                         "unimplemented: %s "
                         "(save 'highlight mouse tracking' mode)",
                         csi_as_string(term, final));
                     break;
+#endif
 
                 default:
                     UNHANDLED();
@@ -1144,12 +1146,14 @@ csi_dispatch(struct terminal *term, uint8_t final)
         case 'r':
             for (size_t i = 0; i < term->vt.params.idx; i++) {
                 switch (term->vt.params.v[i].value) {
+#if 0  /* We don't implement "highlight mouse tracking" */
                 case 1001:  /* restore old highlight mouse tracking mode? */
                     LOG_WARN(
                         "unimplemented: %s "
                         "(restore 'highlight mouse tracking' mode)",
                         csi_as_string(term, final));
                     break;
+#endif
 
                 default:
                     UNHANDLED();