diff --git a/nasm-fix-ppc64-build.patch b/nasm-fix-ppc64-build.patch
new file mode 100644
index 0000000..560a497
--- /dev/null
+++ b/nasm-fix-ppc64-build.patch
@@ -0,0 +1,42 @@
+From: Michel Normand <normand@linux.vnet.ibm.com>
+Subject: nasm change unused
+Date: Wed, 02 Mar 2016 12:38:37 +0100
+
+nasm change _unused to xunused to avoid conflict
+when building on PowerPC
+
+Signed-off-by: Michel Normand <normand@linux.vnet.ibm.com>
+---
+ compiler.h        |    4 ++--
+ output/outmacho.c |    2 +-
+ 2 files changed, 3 insertions(+), 3 deletions(-)
+
+Index: nasm-2.12/compiler.h
+===================================================================
+--- nasm-2.12.orig/compiler.h
++++ nasm-2.12/compiler.h
+@@ -82,9 +82,9 @@
+ #endif
+ 
+ #ifdef __GNUC__
+-# define _unused	__attribute__((unused))
++# define xunused	__attribute__((unused))
+ #else
+-# define _unused
++# define xunused
+ #endif
+ 
+ /* Some versions of MSVC have these only with underscores in front */
+Index: nasm-2.12/output/outmacho.c
+===================================================================
+--- nasm-2.12.orig/output/outmacho.c
++++ nasm-2.12/output/outmacho.c
+@@ -301,7 +301,7 @@ static uint64_t rel_padcnt = 0;
+     ALIGN(x, fmt.ptrsize)	/* align x to output format width */
+ 
+ static void debug_reloc (struct reloc *);
+-static void debug_section_relocs (struct section *) _unused;
++static void debug_section_relocs (struct section *) xunused;
+ 
+ static struct section *get_section_by_name(const char *segname,
+                                            const char *sectname)
diff --git a/nasm.spec b/nasm.spec
index 3fd249f..8bd8a57 100644
--- a/nasm.spec
+++ b/nasm.spec
@@ -1,11 +1,13 @@
 Summary: A portable x86 assembler which uses Intel-like syntax
 Name: nasm
 Version: 2.12
-Release: 1%{?dist}
+Release: 2%{?dist}
 License: BSD
 URL: http://www.nasm.us
 Source0: http://www.nasm.us/pub/nasm/releasebuilds/%{version}/%{name}-%{version}.tar.bz2
 Source1: http://www.nasm.us/pub/nasm/releasebuilds/%{version}/%{name}-%{version}-xdoc.tar.bz2
+# Forwarded upstream: http://bugzilla.nasm.us/show_bug.cgi?id=3392339
+Patch0: %{name}-fix-ppc64-build.patch
 BuildRequires: perl(Env)
 BuildRequires: autoconf
 BuildRequires: asciidoc
@@ -39,6 +41,7 @@ include linker, library manager, loader, and information dump.
 
 %prep
 %setup -q
+%patch0 -p1
 tar xjf %{SOURCE1} --strip-components 1
 
 %build
@@ -89,6 +92,9 @@ fi
 %{_mandir}/man1/ld*
 
 %changelog
+* Thu Mar  3 2016 Mikolaj Izdebski <mizdebsk@redhat.com> - 2.12-2
+- Fix build failure on ppc64
+
 * Mon Feb 29 2016 Mikolaj Izdebski <mizdebsk@redhat.com> - 2.12-1
 - Update to upstream version 2.12