diff --git a/golang-github-prometheus-procfs.spec b/golang-github-prometheus-procfs.spec
index 4ad38a7..175d497 100644
--- a/golang-github-prometheus-procfs.spec
+++ b/golang-github-prometheus-procfs.spec
@@ -30,11 +30,12 @@
 
 Name:           golang-%{provider}-%{project}-%{repo}
 Version:        0
-Release:        0.11.git%{shortcommit}%{?dist}
+Release:        0.12.git%{shortcommit}%{?dist}
 Summary:        Functions to retrieve system, kernel and process metrics from the /proc fs
 License:        ASL 2.0
 URL:            https://%{provider_prefix}
 Source0:        https://%{provider_prefix}/archive/%{commit}/%{repo}-%{shortcommit}.tar.gz
+Patch0:         golang-proc-pagesize.patch
 
 # If go_arches not defined fall through to implicit golang archs
 %if 0%{?go_arches:1}
@@ -91,6 +92,7 @@ providing packages with %{import_path} prefix.
 
 %prep
 %setup -q -n %{repo}-%{commit}
+%patch0 -p1
 
 %build
 
@@ -155,6 +157,9 @@ gotest %{import_path}
 %endif
 
 %changelog
+* Mon Apr 11 2016 Than Ngo <than@redhat.com> 0-0.12.git406e5b7
+- fix build issue on ppc64, use the syscall.Getpagesize to get correct pagesize
+
 * Sun Apr 10 2016 Peter Robinson <pbrobinson@fedoraproject.org> 0-0.10.git406e5b7
 - Bump to upstream 406e5b7bfd8201a36e2bb5f7bdae0b03380c2ce8
 - Spec cleanups
diff --git a/golang-proc-pagesize.patch b/golang-proc-pagesize.patch
new file mode 100644
index 0000000..8a74f38
--- /dev/null
+++ b/golang-proc-pagesize.patch
@@ -0,0 +1,19 @@
+diff -up procfs-406e5b7bfd8201a36e2bb5f7bdae0b03380c2ce8/proc_stat_test.go.than procfs-406e5b7bfd8201a36e2bb5f7bdae0b03380c2ce8/proc_stat_test.go
+--- procfs-406e5b7bfd8201a36e2bb5f7bdae0b03380c2ce8/proc_stat_test.go.than	2016-04-11 06:37:23.590234409 -0400
++++ procfs-406e5b7bfd8201a36e2bb5f7bdae0b03380c2ce8/proc_stat_test.go	2016-04-11 07:33:59.835360813 -0400
+@@ -1,5 +1,6 @@
+ package procfs
+ 
++import "syscall"
+ import "testing"
+ 
+ func TestProcStat(t *testing.T) {
+@@ -66,7 +67,7 @@ func TestProcStatResidentMemory(t *testi
+ 		t.Fatal(err)
+ 	}
+ 
+-	if want, have := 1981*4096, s.ResidentMemory(); want != have {
++	if want, have := 1981*syscall.Getpagesize(), s.ResidentMemory(); want != have {
+ 		t.Errorf("want resident memory %d, have %d", want, have)
+ 	}
+ }