--- rxvt-unicode/src/screen.C	2011/07/08 20:54:31	1.390
+++ rxvt-unicode/src/screen.C	2011/07/10 00:40:10	1.392
@@ -646,7 +646,7 @@
 
       // sever bottommost line
       {
-        line_t &l = ROW(row2 - 1);
+        line_t &l = ROW(row2);
         l.is_longer (0);
         l.touch ();
       }
@@ -763,7 +763,7 @@
 
       // sever bottommost line
       {
-        line_t &l = ROW(row2 - 1);
+        line_t &l = ROW(row2);
         l.is_longer (0);
         l.touch ();
       }