diff --git a/stdlib/mmap.pyi b/stdlib/mmap.pyi
index 38e192439..093199806 100644
--- a/stdlib/mmap.pyi
+++ b/stdlib/mmap.pyi
@@ -16,6 +16,8 @@ if sys.platform == "linux":
     MAP_EXECUTABLE: int
     if sys.version_info >= (3, 10):
         MAP_POPULATE: int
+if sys.version_info >= (3, 11) and sys.platform != "win32" and sys.platform != "darwin":
+    MAP_STACK: int
 
 if sys.platform != "win32":
     MAP_ANON: int
diff --git a/tests/stubtest_allowlists/linux-py311.txt b/tests/stubtest_allowlists/linux-py311.txt
index bae00ad10..7ef0ad0a6 100644
--- a/tests/stubtest_allowlists/linux-py311.txt
+++ b/tests/stubtest_allowlists/linux-py311.txt
@@ -1,5 +1,4 @@
 _?curses.color_pair
-mmap.MAP_STACK
 (os|posix).sendfile
 signal.sigtimedwait
 signal.sigwaitinfo
diff --git a/tests/stubtest_allowlists/linux-py312.txt b/tests/stubtest_allowlists/linux-py312.txt
index 6330b4dea..05f78a9db 100644
--- a/tests/stubtest_allowlists/linux-py312.txt
+++ b/tests/stubtest_allowlists/linux-py312.txt
@@ -2,7 +2,6 @@ _?curses.color_pair
 _posixsubprocess.fork_exec
 (os|posix).sendfile
 (os|posix).setns
-mmap.MAP_STACK
 resource.prlimit
 signal.sigtimedwait
 signal.sigwaitinfo