diff --git a/proto/context.proto b/proto/context.proto
index a54c886a0df74f9a1276b6adea38ae2af2cdc157..87f69132df022e2aa4a0766dc9f0a7a7fae36d59 100644
--- a/proto/context.proto
+++ b/proto/context.proto
@@ -510,7 +510,6 @@ message ConfigRule_Custom {
 message ConfigRule_ACL {
   EndPointId endpoint_id = 1;
   acl.AclRuleSet rule_set = 2;
-  string interface = 3;
 }
 
 message ConfigRule {