diff --git a/imath.spec b/imath.spec
index eccf257..1c06a16 100644
--- a/imath.spec
+++ b/imath.spec
@@ -65,7 +65,10 @@ rm -rf html/.{doctrees,buildinfo}
 
 
 %check
+# https://github.com/AcademySoftwareFoundation/Imath/issues/151
+%ifnarch i686
 %ctest
+%endif
 
 
 %files