1 files changed, 1 insertions, 0 deletions
diff --git a/st.c b/st.c
index be2be2c..386e001 100644
--- a/st.c
+++ b/st.c
@@ -1790,6 +1790,7 @@ csihandle(void)
 		}
 		break;
 	case 'S': /* SU -- Scroll <n> line up */
+		if (csiescseq.priv) break;
 		DEFAULT(csiescseq.arg[0], 1);
 		tscrollup(term.top, csiescseq.arg[0], 0);
 		break;