1 files changed, 1 insertions, 0 deletions
diff --git a/txr.h b/txr.h
index 0fe34df4..6d9d82ce 100644
--- a/txr.h
+++ b/txr.h
@@ -37,6 +37,7 @@ extern int opt_noninteractive;
 extern int opt_compat;
 extern int opt_debugger;
 extern int opt_dbg_autoload;
+extern int opt_dbg_expansion;
 extern alloc_bytes_t opt_gc_delta;
 extern const wchli_t *version;
 extern const wchar_t *progname;