diff --git a/src/nsterm.m b/src/nsterm.m
index 5cd64f1d4a3..7b9cebac875 100644
--- a/src/nsterm.m
+++ b/src/nsterm.m
@@ -2341,6 +2341,7 @@ External call (RIF): draw cursor
     case HBAR_CURSOR:
       s = r;
       s.origin.y += lrint (0.75 * s.size.height);
+      s.size.width = min (FRAME_COLUMN_WIDTH (f), s.size.width);
       s.size.height = lrint (s.size.height * 0.25);
       NSRectFill (s);
       break;