diff --git a/lib/vsc/administration/slurm/sync.py b/lib/vsc/administration/slurm/sync.py
index bde2c6e5..07c45fff 100644
--- a/lib/vsc/administration/slurm/sync.py
+++ b/lib/vsc/administration/slurm/sync.py
@@ -116,11 +116,14 @@ def slurm_project_qos(projects, slurm_qos_info, clusters, protected_qos, qos_cle
             qos_name = f"{cluster}-{project.name}"
             if qos_name not in cluster_qos_names:
                 commands.append(create_add_qos_command(qos_name))
-            commands.append(create_modify_qos_command(qos_name, {
-                "GRPTRESMins": "billing={credits},gres/gpu={gpuminutes}".format(
-                    credits=60*int(project.credits),
-                    gpuminutes=max(1, 60*int(project.gpu_hours)))
+
+            try: 
+                commands.append(create_modify_qos_command(qos_name, {
+                    "GRPTRESMins": f"billing={60 * int(project.credits)},gres/gpu={max(1, 60 * int(project.hpu_hours or 0))}"
                 }))
+            except TypeError as err:
+                # This should not fail the script immediately.
+                logging.error(f"{project.name} cannot set QoS due to {err}")
 
             # TODO: if we pass a cutoff date, we need to alter the hours if less was spent
 
diff --git a/setup.py b/setup.py
index c19c89df..f3786b7a 100644
--- a/setup.py
+++ b/setup.py
@@ -32,7 +32,7 @@
 ]
 
 PACKAGE = {
-    'version': '4.6.0',
+    'version': '4.6.1',
     'author': [ag, jt],
     'maintainer': [ag, jt],
     'tests_require': ['mock'],