diff --git a/apparmor.d/tunables/multiarch.d/system b/apparmor.d/tunables/multiarch.d/system
index 95e42888c..40f56216d 100644
--- a/apparmor.d/tunables/multiarch.d/system
+++ b/apparmor.d/tunables/multiarch.d/system
@@ -5,17 +5,20 @@
 # To allow extended personalisation without breaking everything.
 # All apparmor profiles should always use the variables defined here.
 
-# Single hexadecimal character
-@{h}=[0-9a-fA-F]
+# Any digit
+@{d}=[0-9]
+
+# Any letter
+@{l}=[a-zA-Z]
 
 # Single alphanumeric character
 @{c}=[0-9a-zA-Z]
 
-# Word character. Matches any letter, digit or underscore.
+# Word character: matches any letter, digit or underscore.
 @{w}=[a-zA-Z0-9_]
 
-# Any digit
-@{d}=[0-9]
+# Single hexadecimal character
+@{h}=[0-9a-fA-F]
 
 # Integer up to 10 digits (0-9999999999)
 @{int}=@{d}{@{d},}{@{d},}{@{d},}{@{d},}{@{d},}{@{d},}{@{d},}{@{d},}{@{d},}
@@ -37,7 +40,10 @@
 @{int4}=@{int2}@{int2}
 @{int6}=@{int4}@{int2}
 @{int8}=@{int4}@{int4}
+@{int9}=@{int8}@{d}
 @{int10}=@{int8}@{int2}
+@{int12}=@{int8}@{int4}
+@{int15}=@{int8}@{int4}@{int2}@{d}
 @{int16}=@{int8}@{int8}
 @{int32}=@{int16}@{int16}
 @{int64}=@{int32}@{int32}