diff --git a/src/prefect/infrastructure/kubernetes.py b/src/prefect/infrastructure/kubernetes.py
index 2962dc214f97..c718fca5f30c 100644
--- a/src/prefect/infrastructure/kubernetes.py
+++ b/src/prefect/infrastructure/kubernetes.py
@@ -586,7 +586,7 @@ def _shortcut_customizations(self) -> JsonPatch:
                         "prefect-job-"
                         # We generate a name using a hash of the primary job settings
                         + stable_hash(
-                            *self.command,
+                            *self.command if self.command else "",
                             *self.env.keys(),
                             *[v for v in self.env.values() if v is not None],
                         )
diff --git a/tests/infrastructure/test_kubernetes_job.py b/tests/infrastructure/test_kubernetes_job.py
index be6b68e5efbb..f679dc6fa15a 100644
--- a/tests/infrastructure/test_kubernetes_job.py
+++ b/tests/infrastructure/test_kubernetes_job.py
@@ -153,6 +153,14 @@ def test_building_a_job_is_idempotent():
     assert first_time == second_time
 
 
+def test_building_a_job_with_null_command():
+    """
+    Regression test for https://github.com/PrefectHQ/prefect/issues/14918
+    """
+    k8s_job = KubernetesJob(command=None)
+    k8s_job.build_job()
+
+
 def test_creates_job_by_building_a_manifest(
     mock_k8s_batch_client,
     mock_k8s_client,