diff --git a/git_review/cmd.py b/git_review/cmd.py
index c879bf0f..20b419be 100644
--- a/git_review/cmd.py
+++ b/git_review/cmd.py
@@ -1016,9 +1016,18 @@ def assert_one_change(remote, branch, yes, have_hook):
                   "installed. Amending the commit to add a gerrit change id.")
         run_command("git commit --amend", GIT_EDITOR='true')
     elif output_lines == 0:
-        printwrap("No changes between HEAD and %s/%s. Submitting for review "
+        printwrap("The commit HEAD already exists on a branch on the remote. "
+                  "If it already exists on %s/%s, then submitting for review "
                   "would be pointless." % (remote, branch))
-        sys.exit(1)
+        print("\n\n"
+              "Do you really want to submit this review?")
+        try:
+            yes_no = input("Type 'yes' to confirm, other to cancel: ")
+        except KeyboardInterrupt:
+            yes_no = "no"
+        if yes_no.lower().strip() != "yes":
+            print("Aborting.")
+            sys.exit(1)
     elif output_lines > 1:
         if not yes:
             printwrap("You are about to submit multiple commits. This is "