diff --git a/utils/apparmor/rule/mount.py b/utils/apparmor/rule/mount.py
index 64e9cbdd5..64417832c 100644
--- a/utils/apparmor/rule/mount.py
+++ b/utils/apparmor/rule/mount.py
@@ -51,13 +51,13 @@ join_valid_fs = '|'.join(valid_fs)
 sep = r"\s*[\s,]\s*"
 
 fs_type_pattern = r"\b(?P<fstype_or_vfstype>fstype|vfstype)\b\s*(?P<fstype_equals_or_in>=|in)\s*"\
-        r"(?P<fstype>\(\s*(" + join_valid_fs + ")(" + sep + "(" + join_valid_fs + "))*\s*\)|"\
+        r"(?P<fstype>\(\s*(" + join_valid_fs + ")(" + sep + "(" + join_valid_fs + r"))*\s*\)|"\
         r"\{\s*(" + join_valid_fs + ")(" + sep + "(" + join_valid_fs + r"))*\s*\}|(\s*" + join_valid_fs + "))"\
 
 
 option_pattern = r"\s*(\boption(s?)\b\s*(?P<options_equals_or_in>=|in)\s*"\
         r"(?P<options>\(\s*(" + join_valid_flags + ")(" + sep + "(" + join_valid_flags + r"))*\s*\)|" \
-        "(\s*" + join_valid_flags + ")"\
+        r"(\s*" + join_valid_flags + ")"\
         "))?"
 mount_condition_pattern = rf"({fs_type_pattern})?\s*({option_pattern})?"
 
@@ -103,13 +103,7 @@ class MountRule(BaseRule):
             raise AppArmorException(_('Passed unknown options keyword to %s: %s') % (type(self).__name__, ' '.join(unknown_items)))
         self.is_options_equal = options[0] if not self.all_options else None
 
-        if source != self.ALL and source[0].isalpha():
-            self.source = source
-            self.all_source = False
-            self.source_is_path = False
-        else:
-            self.source_is_path = True
-            self.source, self.all_source = self._aare_or_all(source, 'source', is_path=self.source_is_path, log_event=log_event)
+        self.source, self.all_source = self._aare_or_all(source, 'source', is_path=False, log_event=log_event)
 
         if not self.all_fstype and self.is_fstype_equal not in ("=", "in"):
             raise AppArmorBug(f'Invalid is_fstype_equal : {self.is_fstype_equal}')
@@ -223,12 +217,7 @@ class MountRule(BaseRule):
             return False
         if not self._is_covered_list(self.options, self.all_options, other_rule.options, other_rule.all_options, 'options'):
             return False
-        if not self.source_is_path and not other_rule.source_is_path:
-            if self.source != other_rule.source:
-                return False
-        elif self.source_is_path != other_rule.source_is_path:
-            return False
-        elif not self._is_covered_aare(self.source, self.all_source, other_rule.source, other_rule.all_source, 'source'):
+        if not self._is_covered_aare(self.source, self.all_source, other_rule.source, other_rule.all_source, 'source'):
             return False
         if not self._is_covered_aare(self.dest, self.all_dest, other_rule.dest, other_rule.all_dest, 'dest'):
             return False
@@ -244,12 +233,7 @@ class MountRule(BaseRule):
             return False
         if self.fstype != rule_obj.fstype or self.options != rule_obj.options:
             return False
-        if not self.source_is_path and not rule_obj.source_is_path:
-            if self.source != rule_obj.source:
-                return False
-        elif self.source_is_path != rule_obj.source_is_path:
-            return False
-        elif not self._is_equal_aare(self.source, self.all_source, rule_obj.source, rule_obj.all_source, 'source'):
+        if not self._is_equal_aare(self.source, self.all_source, rule_obj.source, rule_obj.all_source, 'source'):
             return False
         if not self._is_equal_aare(self.dest, self.all_dest, rule_obj.dest, rule_obj.all_dest, 'dest'):
             return False