diff --git a/utils/apparmor/aa.py b/utils/apparmor/aa.py
index 6dfb27a57..19a9495de 100644
--- a/utils/apparmor/aa.py
+++ b/utils/apparmor/aa.py
@@ -1919,7 +1919,7 @@ def parse_profile_data(data, file, do_include):
 
         elif AbiRule.match(line):
             if profile:
-                profile_data[profile][hat]['abi'].append(line)
+                profile_data[profile][hat]['abi'].add(AbiRule.parse(line))
             else:
                 active_profiles.add_abi(file, AbiRule.parse(line))
 
diff --git a/utils/apparmor/profile_storage.py b/utils/apparmor/profile_storage.py
index 5975517c5..cecca6778 100644
--- a/utils/apparmor/profile_storage.py
+++ b/utils/apparmor/profile_storage.py
@@ -16,6 +16,7 @@
 
 from apparmor.common import AppArmorBug, type_is_str
 
+from apparmor.rule.abi              import AbiRuleset
 from apparmor.rule.capability       import CapabilityRuleset
 from apparmor.rule.change_profile   import ChangeProfileRuleset
 from apparmor.rule.dbus             import DbusRuleset
@@ -33,6 +34,7 @@ from apparmor.translations import init_translation
 _ = init_translation()
 
 ruletypes = {
+    'abi':              {'ruleset': AbiRuleset},
     'inc_ie':           {'ruleset': IncludeRuleset},
     'capability':       {'ruleset': CapabilityRuleset},
     'change_profile':   {'ruleset': ChangeProfileRuleset},
@@ -60,7 +62,6 @@ class ProfileStorage:
             data[rule] = ruletypes[rule]['ruleset']()
 
         data['alias']            = dict()
-        data['abi']              = []
         data['include']          = dict()
         data['lvar']             = dict()
 
@@ -141,7 +142,6 @@ class ProfileStorage:
 
         # "old" write functions for rule types not implemented as *Rule class yet
         write_functions = {
-            'abi': write_abi,
             'alias': write_alias,
             'include': write_includes,
             'lvar': write_list_vars,
@@ -221,17 +221,6 @@ def write_list_vars(ref, depth):
 
     return data
 
-def write_abi(ref, depth):
-    pre = '  ' * depth
-    data = []
-
-    if ref.get('abi'):
-        for line in ref.get('abi'):
-            data.append('%s%s' % (pre, line))
-        data.append('')
-
-    return data
-
 def write_alias(prof_data, depth):
     pre = '  ' * depth
     data = []
diff --git a/utils/test/cleanprof_test.out b/utils/test/cleanprof_test.out
index a0d0153e1..b990c355f 100644
--- a/utils/test/cleanprof_test.out
+++ b/utils/test/cleanprof_test.out
@@ -13,7 +13,7 @@ include if exists <tunables/nothing>
 
 
 /usr/bin/a/simple/cleanprof/test/profile {
-  abi  "abi/4.20"    ,
+  abi "abi/4.20",
 
   #include <abstractions/base>