diff --git a/easystacks/pilot.nessi.no/2023.06/eessi-2023.06-eb-4.9.2-2023a.yml b/easystacks/pilot.nessi.no/2023.06/eessi-2023.06-eb-4.9.2-2023a.yml
index 3647db049f..361723d31a 100644
--- a/easystacks/pilot.nessi.no/2023.06/eessi-2023.06-eb-4.9.2-2023a.yml
+++ b/easystacks/pilot.nessi.no/2023.06/eessi-2023.06-eb-4.9.2-2023a.yml
@@ -18,3 +18,4 @@ easyconfigs:
   - MMseqs2-14-7e284-gompi-2023a.eb
   - ncbi-vdb-3.0.10-gompi-2023a.eb
   - phonopy-2.20.0-foss-2023a.eb
+  - Clang-16.0.6-GCCcore-12.3.0.eb
diff --git a/eb_hooks.py b/eb_hooks.py
index f446f51d32..b28b8ef45f 100644
--- a/eb_hooks.py
+++ b/eb_hooks.py
@@ -82,7 +82,7 @@ def post_ready_hook(self, *args, **kwargs):
     # 'parallel' easyconfig parameter is set via EasyBlock.set_parallel in ready step based on available cores.
     # here we reduce parallellism to only use half of that for selected software,
     # to avoid failing builds/tests due to out-of-memory problems
-    if self.name in ['TensorFlow', 'libxc']:
+    if self.name in ['Clang', 'libxc', 'TensorFlow']:
         parallel = self.cfg['parallel']
         if parallel > 1:
             self.cfg['parallel'] = parallel // 2