diff --git a/hgext/rebase.py b/hgext/rebase.py
--- a/hgext/rebase.py
+++ b/hgext/rebase.py
@@ -350,6 +350,8 @@
 
     def _handleskippingobsolete(self):
         """Compute structures necessary for skipping obsolete revisions"""
+        if self.keepf:
+            return
         if not self.ui.configbool(b'experimental', b'rebaseskipobsolete'):
             return
         obsoleteset = {r for r in self.state if self.repo[r].obsolete()}
diff --git a/tests/test-rebase-obsolete2.t b/tests/test-rebase-obsolete2.t
--- a/tests/test-rebase-obsolete2.t
+++ b/tests/test-rebase-obsolete2.t
@@ -317,3 +317,25 @@
   note: not rebasing 20:8b31da3c4919 "dummy change", already in destination as 18:601db7a18f51 "dummy change successor"
   rebasing 21:7bdc8a87673d tip "dummy change"
   $ cd ..
+
+Can rebase pruned and rewritten commits with --keep
+
+  $ hg init keep
+  $ cd keep
+  $ hg debugdrawdag <<'EOS'
+  >   D
+  >   |
+  >   C
+  >   |
+  > F B E  # prune: B
+  >  \|/   # rebase: C -> E
+  >   A
+  > EOS
+  1 new orphan changesets
+
+  $ hg rebase -b D -d F --keep
+  rebasing 1:112478962961 B "B"
+  rebasing 4:26805aba1e60 C "C"
+  rebasing 5:f585351a92f8 D tip "D"
+
+  $ cd ..