diff --git a/src/tree_schema_internal.h b/src/tree_schema_internal.h
index fd1a795..268413f 100644
--- a/src/tree_schema_internal.h
+++ b/src/tree_schema_internal.h
@@ -143,6 +143,7 @@
     struct lysp_module *parsed_mod; /**< (sub)module being parsed */
     struct lys_glob_unres *unres;   /**< global unres structure */
     enum LY_VLOG_ELEM pos_type;     /**< */
+    struct ly_in *in;               /**< input handler for the parser */
     union {
         uint64_t line;              /**< line number */
         const char *path;           /**< path */