--- rxvt-unicode/src/screen.C	2013/03/28 09:21:46	1.441
+++ rxvt-unicode/src/screen.C	2013/03/30 08:47:06	1.442
@@ -3074,6 +3074,14 @@
 
   if (dirn == DN)
     col++;                  /* put us on one past the end */
+  else
+    {
+      // if the delimiter on the left has width > 1 col points to the
+      // first NOCHAR in the delimiter cell and so we must move it to the
+      // beginning of the next cell.
+      while (ROW(row).t[col] == NOCHAR)
+        col++;
+    }
 
   /* Poke the values back in */
   ret->row = row;