diff --git a/include/bluetooth/uuid.h b/include/bluetooth/uuid.h
index 0dc7ca144ff..18028514538 100644
--- a/include/bluetooth/uuid.h
+++ b/include/bluetooth/uuid.h
@@ -186,7 +186,7 @@ void bt_uuid_to_str(const struct bt_uuid *uuid, char *str, size_t len);
  *
  *  @return String representation of the UUID given
  */
-const char *bt_uuid_str(struct bt_uuid *uuid);
+const char *bt_uuid_str(const struct bt_uuid *uuid);
 #endif /* CONFIG_BLUETOOTH_DEBUG */
 
 #endif /* __BT_UUID_H */
diff --git a/net/bluetooth/uuid.c b/net/bluetooth/uuid.c
index b2062018b4c..a3d9fa50424 100644
--- a/net/bluetooth/uuid.c
+++ b/net/bluetooth/uuid.c
@@ -102,7 +102,7 @@ void bt_uuid_to_str(const struct bt_uuid *uuid, char *str, size_t len)
 	}
 }
 
-const char *bt_uuid_str(struct bt_uuid *uuid)
+const char *bt_uuid_str(const struct bt_uuid *uuid)
 {
 	static char str[37];