diff --git a/inc/saiacl.h b/inc/saiacl.h
index 4989c3d16..762abfb5a 100644
--- a/inc/saiacl.h
+++ b/inc/saiacl.h
@@ -587,6 +587,24 @@ typedef enum _sai_acl_table_group_member_attr_t
 
 } sai_acl_table_group_member_attr_t;
 
+/**
+ * @brief Mirror copy type for ACL matching
+ */
+typedef enum _sai_acl_mirror_copy_type_t
+{
+    /** Match packets that are not mirror copies */
+    SAI_ACL_MIRROR_COPY_TYPE_NONE,
+
+    /** Match packets that are ingress mirror copies */
+    SAI_ACL_MIRROR_COPY_TYPE_INGRESS,
+
+    /** Match packets that are egress mirror copies */
+    SAI_ACL_MIRROR_COPY_TYPE_EGRESS,
+
+    /** Match packets that are any mirror copy (either ingress or egress) */
+    SAI_ACL_MIRROR_COPY_TYPE_ANY
+} sai_acl_mirror_copy_type_t;
+
 /**
  * @brief ACL User Defined Field Attribute ID Range
  */
@@ -1647,10 +1665,19 @@ typedef enum _sai_acl_table_attr_t
      */
     SAI_ACL_TABLE_ATTR_FIELD_CSIG_D_BIT = SAI_ACL_TABLE_ATTR_FIELD_START + 0x166,
 
+    /**
+     * @brief Match on mirror copy type
+     *
+     * @type bool
+     * @flags CREATE_ONLY
+     * @default false
+     */
+    SAI_ACL_TABLE_ATTR_FIELD_ACL_MIRROR_COPY_TYPE = SAI_ACL_TABLE_ATTR_FIELD_START + 0x167,
+
     /**
      * @brief End of ACL Table Match Field
      */
-    SAI_ACL_TABLE_ATTR_FIELD_END = SAI_ACL_TABLE_ATTR_FIELD_CSIG_D_BIT,
+    SAI_ACL_TABLE_ATTR_FIELD_END = SAI_ACL_TABLE_ATTR_FIELD_ACL_MIRROR_COPY_TYPE,
 
     /**
      * @brief ACL table entries associated with this table.
@@ -2825,10 +2852,19 @@ typedef enum _sai_acl_entry_attr_t
      */
     SAI_ACL_ENTRY_ATTR_FIELD_CSIG_D_BIT = SAI_ACL_ENTRY_ATTR_FIELD_START + 0x166,
 
+    /**
+     * @brief Match on mirror copy type
+     *
+     * @type sai_acl_field_data_t sai_acl_mirror_copy_type_t
+     * @flags CREATE_AND_SET
+     * @default disabled
+     */
+    SAI_ACL_ENTRY_ATTR_FIELD_ACL_MIRROR_COPY_TYPE = SAI_ACL_ENTRY_ATTR_FIELD_START + 0x167,
+
     /**
      * @brief End of Rule Match Fields
      */
-    SAI_ACL_ENTRY_ATTR_FIELD_END = SAI_ACL_ENTRY_ATTR_FIELD_CSIG_D_BIT,
+    SAI_ACL_ENTRY_ATTR_FIELD_END = SAI_ACL_ENTRY_ATTR_FIELD_ACL_MIRROR_COPY_TYPE,
 
     /*
      * Actions [sai_acl_action_data_t]