1 files changed, 2 insertions, 0 deletions
diff --git a/Makefile b/Makefile
index 35d35b2..e8ab26f 100644
--- a/Makefile
+++ b/Makefile
@@ -7,6 +7,8 @@ all: getgbook
 	@echo CC $<
 	@$(CC) -c -g $(CFLAGS) $<
 
+$(OBJ): util.c
+
 getgbook: $(OBJ)
 	@echo LD $@
 	@$(CC) -o $@ $(OBJ) $(LDFLAGS)