diff --git a/ddbridge/ddbridge-mci.h b/ddbridge/ddbridge-mci.h
index 8410ca4..d770a6d 100644
--- a/ddbridge/ddbridge-mci.h
+++ b/ddbridge/ddbridge-mci.h
@@ -759,6 +759,8 @@ struct mci_result {
 #define L1POST_STATIC_FLAG(p)              (((p)[18] >> 1) & 0x01)
 #define L1POST_STATIC_PADDING_FLAG(p)      (((p)[18] >> 1) & 0x01)
 
+#ifdef __KERNEL__
+
 struct mci_base {
 	struct list_head     mci_list;
 	void                *key;
@@ -802,5 +804,6 @@ int mci_cmd_val(struct ddb_link *link, uint32_t cmd, uint32_t val);
 
 extern struct mci_cfg ddb_max_sx8_cfg;
 extern struct mci_cfg ddb_max_m4_cfg;
+#endif
 
 #endif