diff --git a/cmd/snap-update-ns/change.go b/cmd/snap-update-ns/change.go
index e1a334ffd7f..7de5b243be1 100644
--- a/cmd/snap-update-ns/change.go
+++ b/cmd/snap-update-ns/change.go
@@ -405,15 +405,6 @@ func (c *Change) lowLevelPerform(as *Assumptions) error {
 			flags := umountNoFollow
 			if c.Entry.XSnapdDetach() {
 				flags |= syscall.MNT_DETACH
-				// If we are detaching something then before performing the actual detach
-				// switch the entire hierarchy to private event propagation (that is,
-				// none). This works around a bit of peculiar kernel behavior when the
-				// kernel reports EBUSY during a detach operation, because the changes
-				// propagate in a way that conflicts with itself. This is also documented
-				// in umount(2).
-				err = sysMount("none", c.Entry.Dir, "", syscall.MS_REC|syscall.MS_PRIVATE, "")
-				logger.Debugf("mount --make-rprivate %q (error: %v)", c.Entry.Dir, err)
-				err = clearMissingMountError(err)
 			}
 
 			// Perform the raw unmount operation.
diff --git a/cmd/snap-update-ns/change_test.go b/cmd/snap-update-ns/change_test.go
index 83beae259b5..f6ce7bbadcd 100644
--- a/cmd/snap-update-ns/change_test.go
+++ b/cmd/snap-update-ns/change_test.go
@@ -812,7 +812,6 @@ func (s *changeSuite) TestPerformFilesystemMountWithoutMountPointAndReadOnlyBase
 
 		{C: `lstat "/rofs"`, R: testutil.FileInfoDir},
 		{C: `mount "tmpfs" "/rofs" "tmpfs" 0 "mode=0755,uid=0,gid=0"`},
-		{C: `mount "none" "/tmp/.snap/rofs" "" MS_REC|MS_PRIVATE ""`},
 		{C: `unmount "/tmp/.snap/rofs" UMOUNT_NOFOLLOW|MNT_DETACH`},
 
 		// Perform clean up after the unmount operation.
@@ -976,7 +975,6 @@ func (s *changeSuite) TestPerformFilesystemDetch(c *C) {
 	synth, err := chg.Perform(s.as)
 	c.Assert(err, IsNil)
 	c.Assert(s.sys.RCalls(), testutil.SyscallsEqual, []testutil.CallResultError{
-		{C: `mount "none" "/target" "" MS_REC|MS_PRIVATE ""`},
 		{C: `unmount "/target" UMOUNT_NOFOLLOW|MNT_DETACH`},
 
 		// Perform clean up after the unmount operation.
@@ -1323,7 +1321,6 @@ func (s *changeSuite) TestPerformDirectoryBindMountWithoutMountPointAndReadOnlyB
 
 		{C: `lstat "/rofs"`, R: testutil.FileInfoDir},
 		{C: `mount "tmpfs" "/rofs" "tmpfs" 0 "mode=0755,uid=0,gid=0"`},
-		{C: `mount "none" "/tmp/.snap/rofs" "" MS_REC|MS_PRIVATE ""`},
 		{C: `unmount "/tmp/.snap/rofs" UMOUNT_NOFOLLOW|MNT_DETACH`},
 
 		// Perform clean up after the unmount operation.
@@ -1471,7 +1468,6 @@ func (s *changeSuite) TestPerformDirectoryBindMountWithoutMountSourceAndReadOnly
 		{C: `close 4`},
 		{C: `lstat "/rofs"`, R: testutil.FileInfoDir},
 		{C: `mount "tmpfs" "/rofs" "tmpfs" 0 "mode=0755,uid=0,gid=0"`},
-		{C: `mount "none" "/tmp/.snap/rofs" "" MS_REC|MS_PRIVATE ""`},
 		{C: `unmount "/tmp/.snap/rofs" UMOUNT_NOFOLLOW|MNT_DETACH`},
 
 		// Perform clean up after the unmount operation.
@@ -1864,7 +1860,6 @@ func (s *changeSuite) TestPerformFileBindMountWithoutMountPointAndReadOnlyBase(c
 
 		{C: `lstat "/rofs"`, R: testutil.FileInfoDir},
 		{C: `mount "tmpfs" "/rofs" "tmpfs" 0 "mode=0755,uid=0,gid=0"`},
-		{C: `mount "none" "/tmp/.snap/rofs" "" MS_REC|MS_PRIVATE ""`},
 		{C: `unmount "/tmp/.snap/rofs" UMOUNT_NOFOLLOW|MNT_DETACH`},
 
 		// Perform clean up after the unmount operation.
@@ -2259,7 +2254,6 @@ func (s *changeSuite) TestPerformCreateSymlinkWithoutBaseDirAndReadOnlyBase(c *C
 
 		{C: `lstat "/rofs"`, R: testutil.FileInfoDir},
 		{C: `mount "tmpfs" "/rofs" "tmpfs" 0 "mode=0755,uid=0,gid=0"`},
-		{C: `mount "none" "/tmp/.snap/rofs" "" MS_REC|MS_PRIVATE ""`},
 		{C: `unmount "/tmp/.snap/rofs" UMOUNT_NOFOLLOW|MNT_DETACH`},
 
 		// Perform clean up after the unmount operation.
@@ -2520,7 +2514,6 @@ func (s *changeSuite) TestPerformCreateSymlinkWithAvoidedTrespassing(c *C) {
 		{C: `close 7`},
 
 		// We're done restoring now.
-		{C: `mount "none" "/tmp/.snap/etc" "" MS_REC|MS_PRIVATE ""`},
 		{C: `unmount "/tmp/.snap/etc" UMOUNT_NOFOLLOW|MNT_DETACH`},
 
 		// Perform clean up after the unmount operation.