diff --git a/common.mk b/common.mk
index 7103382de4..f9b5b07748 100644
--- a/common.mk
+++ b/common.mk
@@ -747,10 +747,11 @@ encs enc trans libencs libenc libtrans: $(SHOWFLAGS) $(ENC_MK) $(LIBRUBY) $(PREP
 libenc enc: {$(VPATH)}encdb.h
 libtrans trans: {$(VPATH)}transdb.h
 
+# Use MINIRUBY which loads fake.rb for cross compiling
 $(ENC_MK): $(srcdir)/enc/make_encmake.rb $(srcdir)/enc/Makefile.in $(srcdir)/enc/depend \
 	$(srcdir)/enc/encinit.c.erb $(srcdir)/lib/mkmf.rb $(RBCONFIG) fake
 	$(ECHO) generating $@
-	$(Q) $(BOOTSTRAPRUBY) $(srcdir)/enc/make_encmake.rb --builtin-encs="$(BUILTIN_ENCOBJS)" --builtin-transes="$(BUILTIN_TRANSOBJS)" --module$(ENCSTATIC) $(ENCS) $@
+	$(Q) $(MINIRUBY) $(srcdir)/enc/make_encmake.rb --builtin-encs="$(BUILTIN_ENCOBJS)" --builtin-transes="$(BUILTIN_TRANSOBJS)" --module$(ENCSTATIC) $(ENCS) $@
 
 .PRECIOUS: $(MKFILES)