--- a/crypto/aes/Makefile
+++ b/crypto/aes/Makefile
@@ -47,6 +47,9 @@ lib:	$(LIBOBJ)
 
 $(LIBOBJ): $(LIBSRC)
 
+aes-armv4.s: asm/aes-armv4.pl
+	$(PERL) $^ > $@
+
 aes-ia64.s: asm/aes-ia64.S
 	$(CC) $(CFLAGS) -E asm/aes-ia64.S > $@