diff --git a/wcslib.spec b/wcslib.spec
index 4a088db..6abf7d3 100644
--- a/wcslib.spec
+++ b/wcslib.spec
@@ -1,6 +1,6 @@
 Name: wcslib
 Version: 4.6.3
-Release: 1%{?dist}
+Release: 2%{?dist}
 Summary: An implementation of the FITS World Coordinate System standard
 
 Group: Development/Libraries
@@ -37,7 +37,9 @@ Utils provided with %{name}
 
 %build
 %configure --disable-fortran
-make %{?_smp_mflags}
+# seems to have a race condition
+#make %{?_smp_mflags}
+make
 
 %install
 rm -rf %{buildroot}
@@ -81,6 +83,9 @@ make check
 %{_bindir}/*
 
 %changelog
+* Tue Nov 09 2010 Sergio Pascual <sergiopr at fedoraproject.org> 4.6.3-2
+- Race condition with parallel make
+
 * Tue Nov 09 2010 Sergio Pascual <sergiopr at fedoraproject.org> 4.6.3-1
 - New upstream source
 - Patch to fix problems compiling i686 in x86_64