diff --git a/apparmor.d/tunables/multiarch.d/system b/apparmor.d/tunables/multiarch.d/system
index cc4192d2..4e8b1bc1 100644
--- a/apparmor.d/tunables/multiarch.d/system
+++ b/apparmor.d/tunables/multiarch.d/system
@@ -78,7 +78,7 @@
 @{rand15}=@{rand8}@{rand4}@{rand2}@{c}
 @{rand16}=@{rand8}@{rand8}
 @{rand32}=@{rand16}@{rand16}
-@{rand64}=@{rand64}@{rand64}
+@{rand64}=@{rand32}@{rand32}
 
 # Any x word characters
 @{word2}=@{w}@{w}