diff --git a/fltk.spec b/fltk.spec
index 8785a28..d02cdc3 100644
--- a/fltk.spec
+++ b/fltk.spec
@@ -81,23 +81,19 @@ Requires: %{name}-devel
 
 
 %build
-mkdir build
-pushd build
-%cmake .. \
-       -DFLTK_CONFIG_PATH:PATH=%{_libdir}/cmake/fltk \
+%cmake -DFLTK_CONFIG_PATH:PATH=%{_libdir}/cmake/fltk \
        -DOpenGL_GL_PREFERENCE=GLVND \
        -DOPTION_BUILD_HTML_DOCUMENTATION:BOOL=ON \
        -DOPTION_BUILD_PDF_DOCUMENTATION:BOOL=OFF \
        -DOPTION_BUILD_SHARED_LIBS:BOOL=ON
-popd
 
-%make_build -C build
+%cmake_build
 
-make docs -C build
+make docs -C %{_vpath_builddir}
 
 
 %install
-%make_install -C build
+%cmake_install
 
 # we only apply this hack to multilib arch's
 %ifarch x86_64 %{ix86} ppc64 ppc s390x s390 sparc64 sparc
@@ -123,7 +119,7 @@ desktop-file-validate $RPM_BUILD_ROOT%{_datadir}/applications/fluid.desktop
 %{_libdir}/libfltk_images.so.1.3*
 
 %files devel
-%doc build/documentation/html
+%doc %{_vpath_builddir}/documentation/html
 %{_bindir}/fltk-config
 %{?arch:%{_bindir}/fltk-config-%{arch}}
 %{_includedir}/FL/