diff --git a/Makefile.in b/Makefile.in
index c51b9ed..6e5ce37 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -66,7 +66,7 @@ lib_clean:
 menu.o: menu.c
 	$(CC) -c $(CPPFLAGS) $(ALL_CFLAGS) -DAMIWM_HOME=\"$(AMIWM_HOME)\" $<
 
-rc.o: rc.c
+rc.o: rc.c gram.h
 	$(CC) -c $(CPPFLAGS) $(ALL_CFLAGS) -DAMIWM_HOME=\"$(AMIWM_HOME)\" $<
 
 diskobject.o: diskobject.c