diff --git a/kdevelop.spec b/kdevelop.spec
index 0b714bd..6bb5c3f 100644
--- a/kdevelop.spec
+++ b/kdevelop.spec
@@ -5,7 +5,7 @@ Name:    kdevelop
 Summary: Integrated Development Environment for C++/C
 Epoch:   9
 Version: 4.2.2
-Release: 1%{?dist}
+Release: 2%{?dist}
 
 License: GPLv2
 URL:     http://www.kdevelop.org/
@@ -20,7 +20,10 @@ BuildRequires: gettext
 BuildRequires: kdebase-workspace-devel
 BuildRequires: kdevplatform-devel >= %{kdevplatform_ver} 
 BuildRequires: kdelibs4-devel 
+# some arches don't have valgrind so we need to disable its support on them
+%ifarch %{ix86} x86_64 ppc ppc64 s390x
 BuildRequires: valgrind-devel
+%endif
 # okteta moved -> kdesdk-4.5.80
 %if 0%{?fedora} > 14
 BuildRequires: kdesdk-devel >= 4.5.80
@@ -151,6 +154,9 @@ update-mime-database %{_kde4_datadir}/mime &> /dev/null
 
 
 %changelog
+* Tue Apr 26 2011 Dan Horák <dan[at]danny.cz> - 9:4.2.2-2
+- valgrind exists only on selected architectures
+
 * Thu Apr 07 2011 Radek Novacek <rnovacek@redhat.com> 9:4.2.2-1
 - Update to 4.2.2