1 files changed, 2 insertions, 1 deletions
diff --git a/inc/term.h b/inc/term.h
index b64b106..eb74c2c 100644
--- a/inc/term.h
+++ b/inc/term.h
@@ -22,12 +22,13 @@ struct term {
 			struct term *rhs;
 		} app;
 		struct {
-			int index;
+			size_t index;
 		} var;
 	} u;
 };
 
 struct term *term_new(term_type_t type, hash_t hash, size_t depth);
 void term_refer(struct term *term, size_t depth);
+void term_print(struct term *term);
 
 #endif