diff --git a/airrac.spec b/airrac.spec
index c23a7d7..a3c7a3d 100644
--- a/airrac.spec
+++ b/airrac.spec
@@ -1,3 +1,6 @@
+# Force out of source build
+%undefine __cmake_in_source_build
+
 #
 %global mydocs __tmp_docdir
 #
@@ -57,15 +60,15 @@ online (http://%{name}.org).
 
 
 %prep
-%autosetup -n %{name}-%{name}-%{version} 
+%autosetup -n %{name}-%{name}-%{version}
 
 
 %build
-%cmake .
-%make_build
+%cmake
+%cmake_build
 
 %install
-%make_install
+%cmake_install
 
 mkdir -p %{mydocs}
 mv $RPM_BUILD_ROOT%{_docdir}/%{name}/html %{mydocs}
@@ -76,7 +79,7 @@ rm -f %{mydocs}/html/installdox
 rm -f $RPM_BUILD_ROOT%{_docdir}/%{name}/{NEWS,README.md,AUTHORS}
 
 %check
-ctest
+%ctest
 
 
 %files