diff --git a/lensfun.spec b/lensfun.spec
index 6c4343d..dc19f0b 100644
--- a/lensfun.spec
+++ b/lensfun.spec
@@ -4,7 +4,7 @@
 Name: lensfun
 Version: 0.2.5
 Summary: Library to rectify defects introduced by photographic lenses
-Release: 1%{?dist} 
+Release: 2%{?dist} 
 License: LGPLv3 and CC-BY-SA
 Group: System Environment/Libraries
 URL: http://lensfun.berlios.de/
@@ -53,6 +53,9 @@ using lensfun.
   --libdir=%{_libdir} \
   --includedir=%{_includedir} \
   --libexecdir=%{_libexecdir} \
+%ifnarch %{ix86} x86_64
+  --vectorization \
+%endif
   --target=..generic
 
 # set GCC.LDFLAGS to avoid stripping and useless -debuginfo
@@ -95,6 +98,9 @@ rm -rf %{buildroot}
 
 
 %changelog
+* Mon Jul 26 2010 Dan Horák <dan[at]danny.cz> 0.2.5-2
+- disable SSE vectorization on non x86 arches
+
 * Mon Jun 07 2010 Nils Philippsen <nils@redhat.com> 0.2.5-1
 - lensfun-0.2.5
 - add CC-BY-SA to main package license tag for lens data