tree schema REFACTOR move ext definitions to plugins_exts header
diff --git a/src/parser_lyb.c b/src/parser_lyb.c
index 0e6bf9c..cacda64 100644
--- a/src/parser_lyb.c
+++ b/src/parser_lyb.c
@@ -31,6 +31,7 @@
 #include "parser_data.h"
 #include "parser_internal.h"
 #include "plugins_exts.h"
+#include "plugins_exts/metadata.h"
 #include "set.h"
 #include "tree.h"
 #include "tree_data.h"