diff --git a/rhn-client-tools.spec b/rhn-client-tools.spec
index ebfe178..37010d8 100644
--- a/rhn-client-tools.spec
+++ b/rhn-client-tools.spec
@@ -13,11 +13,13 @@
 Summary: Support programs and libraries for Red Hat Satellite or Spacewalk
 Name: rhn-client-tools
 Version: 2.8.16
-Release: 7%{?dist}
+Release: 8%{?dist}
 License: GPLv2
 Source0: https://github.com/spacewalkproject/spacewalk/archive/%{name}-%{version}.tar.gz
 URL:     https://github.com/spacewalkproject/spacewalk
-BuildArch: noarch
+#BuildArch: noarch
+# see BZ 1617942 for more info as Requires are written into RPM headers
+# there's no way how to do this dynamicaly based on arch, so splitting arches is the only option
 %if 0%{?suse_version}
 BuildRequires: update-desktop-files
 %endif
@@ -72,7 +74,9 @@ Summary: Support programs and libraries for Red Hat Satellite or Spacewalk
 %{?python_provide:%python_provide python2-%{name}}
 Requires: %{name} = %{version}-%{release}
 Requires: rpm-python
+%if %{_arch} == x86_64
 Requires: python-dmidecode
+%endif
 Requires: python-ethtool >= 0.4
 Requires: rhnlib >= 2.5.78
 BuildRequires: python-devel
@@ -135,7 +139,9 @@ Requires: newt-python3
 Requires: python3-gobject-base
 %endif
 Requires: python3-rpm
+%if %{_arch} == x86_64
 Requires: python3-dmidecode
+%endif
 Requires: python3-netifaces
 Requires: python3-hwdata
 Requires: python3-rhnlib >= 2.5.78
@@ -681,6 +687,13 @@ make -f Makefile.rhn-client-tools test
 %endif
 
 %changelog
+* Thu Sep 27 2018 Tomas Kasparek <tkasparek@redhat.com> 2.8.16-8
+- Related: #1622145 - don't run dmi_warnings() if there's no dmidecode
+  (tkasparek@redhat.com)
+- Related: #1622145 - split into arch package (tkasparek@redhat.com)
+- Resolves: #1622145 - drop dmidecode dependency on non x86_64 arches
+  (tkasparek@redhat.com)
+
 * Tue Jul 24 2018 Tomas Kasparek <tkasparek@redhat.com> 2.8.16-7
 - bump package version
 
diff --git a/src/up2date_client/hardware.py b/src/up2date_client/hardware.py
index 0cb9f76..c63df42 100644
--- a/src/up2date_client/hardware.py
+++ b/src/up2date_client/hardware.py
@@ -46,6 +46,12 @@ try:
 except ImportError:
     netifaces_present = False
 
+try:
+    import dmidecode
+    dmidecode_present = True
+except ImportError:
+    dmidecode_present = False
+
 import gettext
 t = gettext.translation('rhn-client-tools', fallback=True)
 # Python 3 translations don't have a ugettext method
@@ -54,7 +60,6 @@ if not hasattr(t, 'ugettext'):
 _ = t.ugettext
 
 import dbus
-import dmidecode
 from up2date_client import up2dateLog
 
 try:
@@ -83,7 +88,7 @@ except ImportError:
 
 # this does not change, we can cache it
 _dmi_data           = None
-_dmi_not_available  = 0
+_dmi_not_available  = 0 if dmidecode_present else 1
 
 def dmi_warnings():
     if not hasattr(dmidecode, 'get_warnings'):
@@ -91,7 +96,7 @@ def dmi_warnings():
 
     return dmidecode.get_warnings()
 
-dmi_warn = dmi_warnings()
+dmi_warn = None if _dmi_not_available else dmi_warnings()
 if dmi_warn:
     dmidecode.clear_warnings()
     log = up2dateLog.initLog()