diff --git a/nox/_option_set.py b/nox/_option_set.py
index 0ffcc9d9..26014117 100644
--- a/nox/_option_set.py
+++ b/nox/_option_set.py
@@ -160,7 +160,7 @@ def flag_pair_merge_func(
 def make_flag_pair(
     name: str,
     enable_flags: tuple[str, str] | tuple[str],
-    disable_flags: tuple[str],
+    disable_flags: tuple[str, str] | tuple[str],
     default: bool = False,
     **kwargs: Any,
 ) -> tuple[Option, Option]:
diff --git a/nox/_options.py b/nox/_options.py
index 4f6b3ad7..4129c32d 100644
--- a/nox/_options.py
+++ b/nox/_options.py
@@ -363,7 +363,10 @@ def _session_completer(
     *_option_set.make_flag_pair(
         "reuse_existing_virtualenvs",
         ("-r", "--reuse-existing-virtualenvs"),
-        ("--no-reuse-existing-virtualenvs",),
+        (
+            "-N",
+            "--no-reuse-existing-virtualenvs",
+        ),
         group=options.groups["environment"],
         help="Re-use existing virtualenvs instead of recreating them.",
     ),