diff --git a/Makefile b/Makefile
index e9ae0ae..0ada98d 100644
--- a/Makefile
+++ b/Makefile
@@ -42,7 +42,7 @@ nsxiv: $(objs)
 
 $(objs): Makefile config.mk nsxiv.h config.h commands.h
 options.o: version.h
-window.o: icon/data.h
+window.o: icon/data.h utf8.h
 
 config.h:
 	@echo "GEN $@"