1 files changed, 1 insertions, 1 deletions

diff --git a/Makefile b/Makefile
index 8f87383..58f4163 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-build: grammar.y lex.l
+build: grammar.y lex.l ast.h ast.c
 	bison \
 		-o build/grammar.tab.c \
 		-d grammar.y \