st.c | 2 +-

diff --git a/st.c b/st.c
index 57c6e962ac778da43795ed855035b4554ebd02cf..2e3800e437ecda60d015a16da9f468c576337bb4 100644
--- a/st.c
+++ b/st.c
@@ -1705,7 +1705,7 @@ 						term.row-1);
 			}
 			break;
 		case 1: /* above */
-			if (term.c.y > 1)
+			if (term.c.y > 0)
 				tclearregion(0, 0, term.col-1, term.c.y-1);
 			tclearregion(0, term.c.y, term.c.x, term.c.y);
 			break;