diff --git a/q/QMCPACK/QMCPACK-3.16.0-foss-2022a-Python-3.10.4.eb b/q/QMCPACK/QMCPACK-3.16.0-foss-2022a-Python-3.10.4.eb
index 9fce37e5..b23a3136 100644
--- a/q/QMCPACK/QMCPACK-3.16.0-foss-2022a-Python-3.10.4.eb
+++ b/q/QMCPACK/QMCPACK-3.16.0-foss-2022a-Python-3.10.4.eb
@@ -35,7 +35,7 @@ dependencies = [
 separate_build_dir = True
 
 configopts = ' -DENABLE_SOA=1 '
-configopts = ' -DCMAKE_C_COMPILER=mpicc -DCMAKE_CXX_COMPILER=mpicxx '
+configopts += ' -DCMAKE_C_COMPILER=mpicc -DCMAKE_CXX_COMPILER=mpicxx '
 configopts += ' -DHDF5_PREFER_PARALLEL=1 -DENABLE_PHDF5=1 '
 configopts += ' -DQMC_SYMLINK_TEST_FILES=0 '
 configopts += ' -DCMAKE_BUILD_TYPE=Release '
@@ -47,7 +47,8 @@ configopts += ' -DBUILD_AFQMC=ON ' # FCIQMC fails
 #configopts += '-DQMC_COMPLEX=1'
 
 preinstallopts = [
-#    ' ctest -j32 -V short -LE unstable && ' # run CMake tests in parallel
+#    'ctest -j32 -V -R short -LE unstable && ',
+    ' ctest -j32 -V -R unit && ' # run CMake tests in parallel
     ' mkdir -p %(installdir)s/nexus && ',
     ' mkdir -p %(installdir)s/QMCTools && ',
     ' cp -r %(builddir)s/qmcpack-%(version)s/nexus %(installdir)s/ && ',