diff --git a/Makefile.include b/Makefile.include
index e5fadea98..b93226d46 100644
--- a/Makefile.include
+++ b/Makefile.include
@@ -44,7 +44,7 @@ clean:
 	rm -f $(PROJBINDIR)/*
 
 flash: all
-	$(FLASHER) $(PORT) $(PROJBINDIR)/$(PROJECT).hex
+	$(FLASHER) $(FFLAGS)
 
 term:
 	$(TERM) $(PORT)