diff --git a/mercurial/shelve.py b/mercurial/shelve.py
--- a/mercurial/shelve.py
+++ b/mercurial/shelve.py
@@ -177,6 +177,7 @@
     _nokeep = 'nokeep'
     # colon is essential to differentiate from a real bookmark name
     _noactivebook = ':no-active-bookmark'
+    _interactive = 'interactive'
 
     @classmethod
     def _verifyandtransform(cls, d):
@@ -247,6 +248,7 @@
             obj.activebookmark = ''
             if d.get('activebook', '') != cls._noactivebook:
                 obj.activebookmark = d.get('activebook', '')
+            obj.interactive = d.get('interactive') == cls._interactive
         except (error.RepoLookupError, KeyError) as err:
             raise error.CorruptedState(pycompat.bytestr(err))
 
@@ -254,7 +256,7 @@
 
     @classmethod
     def save(cls, repo, name, originalwctx, pendingctx, nodestoremove,
-             branchtorestore, keep=False, activebook=''):
+             branchtorestore, keep=False, activebook='', interactive=False):
         info = {
             "name": name,
             "originalwctx": nodemod.hex(originalwctx.node()),
@@ -267,6 +269,8 @@
             "keep": cls._keep if keep else cls._nokeep,
             "activebook": activebook or cls._noactivebook
         }
+        if interactive:
+            info['interactive'] = cls._interactive
         scmutil.simplekeyvaluefile(
             repo.vfs, cls._filename).write(info,
                                            firstline=("%d" % cls._version))
@@ -698,7 +702,7 @@
     """subcommand to continue an in-progress unshelve"""
     # We're finishing off a merge. First parent is our original
     # parent, second is the temporary "fake" commit we're unshelving.
-    interactive = opts.get('interactive')
+    interactive = state.interactive
     with repo.lock():
         checkparents(repo, state)
         ms = merge.mergestate.read(repo)
@@ -854,7 +858,8 @@
             nodestoremove = [repo.changelog.node(rev)
                              for rev in pycompat.xrange(oldtiprev, len(repo))]
             shelvedstate.save(repo, basename, pctx, tmpwctx, nodestoremove,
-                              branchtorestore, opts.get('keep'), activebookmark)
+                              branchtorestore, opts.get('keep'), activebookmark,
+                              interactive)
             raise error.InterventionRequired(
                 _("unresolved conflicts (see 'hg resolve', then "
                   "'hg unshelve --continue')"))