diff --git a/Makefile b/Makefile
index 520d4f7..b4ebc1a 100644
--- a/Makefile
+++ b/Makefile
@@ -82,7 +82,7 @@ bedstead-bold-%.bdf.ps: bedstead
 
 # Dependency of all of OTFFILES could be narrowed to just the relevant
 # one.
-%.bdf: %.bdf.ps $(OTFFILES)
+%.bdf: %.bdf.ps $(OTFFILES) Fontmap
 	gs -q -P -dSAFER -dNODISPLAY -dBATCH $< > $@
 
 %.otf: %.sfd