diff --git a/openigtlink-fix_byte_order.patch b/openigtlink-fix_byte_order.patch
new file mode 100644
index 0000000..cf25611
--- /dev/null
+++ b/openigtlink-fix_byte_order.patch
@@ -0,0 +1,28 @@
+diff --git a/Source/igtlutil/igtl_polydata.c b/Source/igtlutil/igtl_polydata.c
+index 62557e7..ca6b585 100644
+--- a/Source/igtlutil/igtl_polydata.c
++++ b/Source/igtlutil/igtl_polydata.c
+@@ -442,12 +442,19 @@ int igtl_export igtl_polydata_unpack(int type, void * byte_array, igtl_polydata_
+     ptr32_dst = (igtl_uint32*)info->attributes[i].data;
+     ptr32_src = (igtl_uint32*)ptr;
+     ptr32_src_end = ptr32_src + n;
+-    while (ptr32_src < ptr32_src_end)
++    if (igtl_is_little_endian())
++    {
++      while (ptr32_src < ptr32_src_end)
+       {
+-      *ptr32_dst = BYTE_SWAP_INT32(*ptr32_src);
+-      ptr32_dst ++;
+-      ptr32_src ++;
++        *ptr32_dst = BYTE_SWAP_INT32(*ptr32_src);
++        ptr32_dst ++;
++        ptr32_src ++;
+       }
++    }
++    else
++    {
++      memcpy(ptr32_dst, ptr32_src, s);
++    }
+     ptr += s;
+     }
+ 
diff --git a/openigtlink.spec b/openigtlink.spec
index b2b5c4a..4614d67 100644
--- a/openigtlink.spec
+++ b/openigtlink.spec
@@ -3,7 +3,7 @@
 
 Name:		openigtlink
 Version:	2.0
-Release:	1%{?dist}
+Release:	2%{?dist}
 Summary:	Implementation of the OpenIGTLink network communication protocol
 
 License:	BSD
@@ -13,11 +13,12 @@ Source0:	https://github.com/openigtlink/OpenIGTLink/archive/v%{version}.tar.gz#/
 # upstream bug #120
 Patch0:		openigtlink-remove_broken_code.patch
 
+# patch from upsream
+Patch1:		openigtlink-fix_byte_order.patch
+
 BuildRequires:	gcc-c++
 BuildRequires:	cmake
 
-# bug #1427300
-ExcludeArch:	ppc64
 
 %description
 OpenIGTLink is a network communication protocol specifically designed and
@@ -96,6 +97,9 @@ popd
 
 
 %changelog
+* Sun Mar 12 2017 Dmitry Mikhirev <mikhirev@gmail.com> 2.0-2
+- Fix test failure on ppc64 and re-enable build on ppc64 #1427300
+
 * Wed Feb 22 2017 Dmitry Mikhirev <mikhirev@gmail.com> 2.0-1
 - Update to 2.0 release
 - Fix FTBFS #1424021