diff --git a/actions/upgrades b/actions/upgrades
index b52e01499..87f20888b 100755
--- a/actions/upgrades
+++ b/actions/upgrades
@@ -366,10 +366,9 @@ def _check_dist_upgrade(test_upgrade=False):
     if check_dist == 'testing' and not test_upgrade:
         return (False, 'test-not-set')
 
-    output = subprocess.check_output(['df', '--output=avail,pcent', '/'])
-    output = output.decode().split('\n')[1].split()
-    free_space, free_percent = int(output[0]), int(output[1][:-1])
-    if free_space < 5000000 or free_percent < 10:
+    output = subprocess.check_output(['df', '--output=avail', '/'])
+    free_space = int(output.decode().split('\n')[1])
+    if free_space < 5000000:
         return (False, 'not-enough-free-space')
 
     logging.info('Upgrading from %s to %s...', dist, codename)
diff --git a/plinth/modules/upgrades/__init__.py b/plinth/modules/upgrades/__init__.py
index 5bd6c62f5..e6ca2d2aa 100644
--- a/plinth/modules/upgrades/__init__.py
+++ b/plinth/modules/upgrades/__init__.py
@@ -209,11 +209,10 @@ def check_dist_upgrade(_):
             logger.warning('Skip dist upgrade: Not enough free space in /.')
             title = ugettext_noop('Could not start distribution update')
             message = ugettext_noop(
-                # xgettext:no-python-format
                 'There is not enough free space in the root partition to '
-                'start the distribution update. Please ensure at least 5 GB, '
-                'and at least 10% of the total space, is free. Distribution '
-                'update will be retried after 24 hours, if enabled.')
+                'start the distribution update. Please ensure at least 5 GB '
+                'is free. Distribution update will be retried after 24 hours,'
+                ' if enabled.')
             Notification.update_or_create(
                 id='upgrades-dist-upgrade-free-space', app_id='upgrades',
                 severity='warning', title=title, message=message, actions=[{