diff --git a/macros.cmake b/macros.cmake
index ebfebee..9ffec75 100644
--- a/macros.cmake
+++ b/macros.cmake
@@ -24,6 +24,8 @@
   %{?__global_ldflags:LDFLAGS="${LDFLAGS:-%__global_ldflags}" ; export LDFLAGS ;} \
 %endif \
   %__cmake \\\
+        -S "%{_vpath_srcdir}" \\\
+        -B "%{_vpath_builddir}" \\\
         -DCMAKE_C_FLAGS_RELEASE:STRING="-DNDEBUG" \\\
         -DCMAKE_CXX_FLAGS_RELEASE:STRING="-DNDEBUG" \\\
         -DCMAKE_Fortran_FLAGS_RELEASE:STRING="-DNDEBUG" \\\