diff --git a/src/borg/archiver.py b/src/borg/archiver.py
index f0f327dd4..0acfec372 100644
--- a/src/borg/archiver.py
+++ b/src/borg/archiver.py
@@ -66,11 +66,12 @@ from .helpers import replace_placeholders
 from .helpers import ChunkIteratorFileWrapper
 from .helpers import popen_with_error_handling
 from .helpers import dash_open
+from .helpers import umount
 from .nanorst import rst_to_terminal
 from .patterns import ArgparsePatternAction, ArgparseExcludeFileAction, ArgparsePatternFileAction, parse_exclude_pattern
 from .patterns import PatternMatcher
 from .item import Item
-from .platform import get_flags, umount, get_process_id, SyncFile
+from .platform import get_flags, get_process_id, SyncFile
 from .remote import RepositoryServer, RemoteRepository, cache_if_remote
 from .repository import Repository, LIST_SCAN_LIMIT
 from .selftest import selftest
diff --git a/src/borg/helpers.py b/src/borg/helpers.py
index 7dc62e57b..1b6d38d83 100644
--- a/src/borg/helpers.py
+++ b/src/borg/helpers.py
@@ -2277,3 +2277,10 @@ def dash_open(path, mode):
 
 def is_terminal(fd=sys.stdout):
     return hasattr(fd, 'isatty') and fd.isatty() and (sys.platform != 'win32' or 'ANSICON' in os.environ)
+
+
+def umount(mountpoint):
+    try:
+        return subprocess.call(['fusermount', '-u', mountpoint])
+    except FileNotFoundError:
+        return subprocess.call(['umount', mountpoint])
diff --git a/src/borg/platform/__init__.py b/src/borg/platform/__init__.py
index 34202bf90..171590b74 100644
--- a/src/borg/platform/__init__.py
+++ b/src/borg/platform/__init__.py
@@ -9,7 +9,7 @@ Public APIs are documented in platform.base.
 from .base import acl_get, acl_set
 from .base import set_flags, get_flags
 from .base import SaveFile, SyncFile, sync_dir, fdatasync, safe_fadvise
-from .base import swidth, umount, API_VERSION
+from .base import swidth, API_VERSION
 from .base import process_alive, get_process_id, local_pid_alive
 
 OS_API_VERSION = API_VERSION
@@ -22,12 +22,12 @@ if sys.platform.startswith('linux'):  # pragma: linux only
     from .linux import acl_get, acl_set
     from .linux import set_flags, get_flags
     from .linux import SyncFile
-    from .linux import swidth, umount
+    from .linux import swidth
 elif sys.platform.startswith('freebsd'):  # pragma: freebsd only
     from .freebsd import API_VERSION as OS_API_VERSION
     from .freebsd import acl_get, acl_set
-    from .freebsd import swidth, umount
+    from .freebsd import swidth
 elif sys.platform == 'darwin':  # pragma: darwin only
     from .darwin import API_VERSION as OS_API_VERSION
     from .darwin import acl_get, acl_set
-    from .darwin import swidth, umount
+    from .darwin import swidth
diff --git a/src/borg/platform/base.py b/src/borg/platform/base.py
index be4b694e8..ba938e66a 100644
--- a/src/borg/platform/base.py
+++ b/src/borg/platform/base.py
@@ -183,11 +183,6 @@ def swidth(s):
     return len(s)
 
 
-def umount(mountpoint):
-    """un-mount the FUSE filesystem mounted at <mountpoint>"""
-    return 0  # dummy, see also posix module
-
-
 def get_process_id():
     """
     Return identification tuple (hostname, pid, thread_id) for 'us'. If this is a FUSE process, then the PID will be
diff --git a/src/borg/platform/darwin.pyx b/src/borg/platform/darwin.pyx
index 5800ac873..f13b36620 100644
--- a/src/borg/platform/darwin.pyx
+++ b/src/borg/platform/darwin.pyx
@@ -2,7 +2,7 @@ import os
 
 from ..helpers import user2uid, group2gid
 from ..helpers import safe_decode, safe_encode
-from .posix import swidth, umount
+from .posix import swidth
 
 API_VERSION = '1.1_01'
 
diff --git a/src/borg/platform/freebsd.pyx b/src/borg/platform/freebsd.pyx
index 7a2763ce5..4b3898212 100644
--- a/src/borg/platform/freebsd.pyx
+++ b/src/borg/platform/freebsd.pyx
@@ -2,7 +2,7 @@ import os
 
 from ..helpers import posix_acl_use_stored_uid_gid
 from ..helpers import safe_encode, safe_decode
-from .posix import swidth, umount
+from .posix import swidth
 
 API_VERSION = '1.1_01'
 
diff --git a/src/borg/platform/linux.pyx b/src/borg/platform/linux.pyx
index 6bd1bb4e4..4352d864a 100644
--- a/src/borg/platform/linux.pyx
+++ b/src/borg/platform/linux.pyx
@@ -258,7 +258,3 @@ class SyncFile(BaseSyncFile):
         # tell the OS that it does not need to cache what we just wrote,
         # avoids spoiling the cache for the OS and other processes.
         safe_fadvise(self.fileno, 0, 0, 'DONTNEED')
-
-
-def umount(mountpoint):
-    return subprocess.call(['fusermount', '-u', mountpoint])
diff --git a/src/borg/platform/posix.pyx b/src/borg/platform/posix.pyx
index 8b2b959b6..b8689e2c2 100644
--- a/src/borg/platform/posix.pyx
+++ b/src/borg/platform/posix.pyx
@@ -72,8 +72,3 @@ def local_pid_alive(pid):
             return False
         # Any other error (eg. permissions) means that the process ID refers to a live process.
         return True
-
-
-# most POSIX platforms (but not Linux)
-def umount(mountpoint):
-    return subprocess.call(['umount', mountpoint])
diff --git a/src/borg/testsuite/__init__.py b/src/borg/testsuite/__init__.py
index c5748caa1..640227b13 100644
--- a/src/borg/testsuite/__init__.py
+++ b/src/borg/testsuite/__init__.py
@@ -12,7 +12,8 @@ import uuid
 import unittest
 
 from ..xattr import get_all
-from ..platform import get_flags, umount
+from ..platform import get_flags
+from ..helpers import umount
 from .. import platform
 
 # Note: this is used by borg.selftest, do not use or import py.test functionality here.