diff --git a/b2/bom.h b/b2/bom.h
index 1315339..5411d41 100644
--- a/b2/bom.h
+++ b/b2/bom.h
@@ -22,7 +22,6 @@ struct bom {
 	const char **fields;	/* fields */
 	int n_fields;
 	const struct param *vars; /* variables (before conversion) */
-	const struct bom *next;
 };
 
 extern struct bom *bom;