diff -r a973bb92ab71 -r 25940470c7e6 hgext/rebase.py
--- a/hgext/rebase.py	Thu Apr 05 08:28:12 2018 -0700
+++ b/hgext/rebase.py	Thu Apr 05 10:12:10 2018 -0700
@@ -248,10 +248,10 @@
                     if newrev in legacystates:
                         continue
                     if len(args) > 2:
-                        destnode = args[2]
+                        destrev = repo[args[2]].rev()
                     else:
-                        destnode = legacydest
-                    destmap[repo[oldrev].rev()] = repo[destnode].rev()
+                        destrev = legacydest
+                    destmap[repo[oldrev].rev()] = destrev
                     if newrev in (nullid, revtodostr):
                         state[repo[oldrev].rev()] = revtodo
                         # Legacy compat special case