diff --git a/src/lib/libcrypto/crypto/arch/hppa/Makefile.inc b/src/lib/libcrypto/crypto/arch/hppa/Makefile.inc
index 0f605868..d8ca1065 100644
--- a/src/lib/libcrypto/crypto/arch/hppa/Makefile.inc
+++ b/src/lib/libcrypto/crypto/arch/hppa/Makefile.inc
@@ -1,4 +1,4 @@
-# $OpenBSD: Makefile.inc,v 1.7 2014/11/17 20:31:21 miod Exp $
+# $OpenBSD: Makefile.inc,v 1.8 2015/03/05 20:35:28 miod Exp $
 
 # hppa-specific libcrypto build rules
 
@@ -30,10 +30,12 @@ SRCS+= rc4_enc.c rc4_skey.c
 # sha
 CFLAGS+= -DSHA1_ASM
 SSLASM+= sha sha1-parisc sha1-parisc
+.if 0	# sha512 subtly broken, sha256 probably as well
 CFLAGS+= -DSHA256_ASM
 SSLASM+= sha sha512-parisc sha256-parisc
 CFLAGS+= -DSHA512_ASM
 SSLASM+= sha sha512-parisc sha512-parisc
+.endif
 # whrlpool
 SRCS+= wp_block.c