diff --git a/python-pydenticon.changes b/python-pydenticon.changes
index c8c8f6c..9fc03b6 100644
--- a/python-pydenticon.changes
+++ b/python-pydenticon.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Sat Jun  8 11:28:18 UTC 2019 - Oliver Kurz <okurz@suse.com>
+
+- Disable tests on big endian arch due to https://github.com/azaghal/pydenticon/issues/10
+
 -------------------------------------------------------------------
 Mon May 20 15:32:34 UTC 2019 - pgajdos@suse.com
 
diff --git a/python-pydenticon.spec b/python-pydenticon.spec
index 3af8707..034a854 100644
--- a/python-pydenticon.spec
+++ b/python-pydenticon.spec
@@ -17,6 +17,13 @@
 
 
 %{?!python_module:%define python_module() python-%{**} python3-%{**}}
+# tests on big endian systems fail due to https://github.com/azaghal/pydenticon/issues/10 , disabled until fixed"
+# can not use "ifarch" when BuildArch is set to noarch
+%if %_arch == s390x || %_arch == s390x || %_arch == ppc || %_arch == ppc64
+%bcond_with test
+%else
+%bcond_without test
+%endif
 %define         modname pydenticon
 Name:           python-%{modname}
 Version:        0.3.1
@@ -31,6 +38,7 @@ BuildRequires:  %{python_module base}
 BuildRequires:  %{python_module setuptools}
 # SECTION test requirements
 BuildRequires:  %{python_module mock}
+BuildRequires:  %{python_module pytest}
 # /SECTION
 BuildRequires:  fdupes
 BuildRequires:  python-rpm-macros
@@ -66,7 +74,9 @@ original Sigil implementation, like:
 %python_expand %fdupes %{buildroot}%{$python_sitelib}/%{modname}
 
 %check
+%if %{with test}
 %python_exec setup.py test
+%endif
 
 %files %{python_files}
 %defattr(-,root,root,-)