1 files changed, 3 insertions, 0 deletions
diff --git a/src/expr.h b/src/expr.h
index 871b120..c116778 100644
--- a/src/expr.h
+++ b/src/expr.h
@@ -19,6 +19,9 @@
  * Argument/token/expression kinds.
  */
 enum bfs_kind {
+	/** A regular argument. */
+	BFS_ARG,
+
 	/** A flag (-H, -L, etc.). */
 	BFS_FLAG,