1 files changed, 2 insertions, 0 deletions
diff --git a/src/sexp.h b/src/sexp.h
index d8d2dc9..ce47362 100644
--- a/src/sexp.h
+++ b/src/sexp.h
@@ -16,6 +16,8 @@ typedef struct {
 typedef struct {
     SExpRef car;
     SExpRef cdr;
+    SExpRef filename;
+    int32_t line;
 } SExpPair;
 
 typedef struct {