diff --git a/Makefile b/Makefile
index c9befab..9e9261b 100644
--- a/Makefile
+++ b/Makefile
@@ -53,7 +53,7 @@ complement.ps: bedstead
 	./bedstead --complement > complement.ps
 
 complement.pdf: complement.ps bedstead.otf
-	gs -P -q -dSAFER -sDEVICE=pdfwrite -o $@ $<
+	ps2pdf -P $< $@
 
 .PHONY: clean
 clean: