diff --git a/Makefile.nx b/Makefile.nx
index 4152ca1..294cdba 100644
--- a/Makefile.nx
+++ b/Makefile.nx
@@ -178,7 +178,7 @@ $(OUTPUT).elf	:	$(OFILES)
 #---------------------------------------------------------------------------------
 # you need a rule like this for each extension you use as binary data
 #---------------------------------------------------------------------------------
-%.bin.o	:	%.bin
+%.bin.o	%_bin.h:	%.bin
 #---------------------------------------------------------------------------------
 	@echo $(notdir $<)
 	@$(bin2o)