diff --git a/changelogs/fragments/server-empty-string-arguments.yml b/changelogs/fragments/server-empty-string-arguments.yml
new file mode 100644
index 0000000..4b82edb
--- /dev/null
+++ b/changelogs/fragments/server-empty-string-arguments.yml
@@ -0,0 +1,3 @@
+bugfixes:
+  - server - Do not remove the server from its placement group when the `placement_group` argument is not specified.
+  - server - Pass an empty string to the `placement_group` argument to remove a server from its placement group.
diff --git a/tests/integration/targets/placement_group/tasks/test.yml b/tests/integration/targets/placement_group/tasks/test.yml
index 3694c84..d988275 100644
--- a/tests/integration/targets/placement_group/tasks/test.yml
+++ b/tests/integration/targets/placement_group/tasks/test.yml
@@ -80,7 +80,7 @@
 - name: test remove server from placement group
   hetzner.hcloud.server:
     name: "{{ hcloud_server_name }}"
-    placement_group: null
+    placement_group: ""
     state: present
   register: result
 - name: verify remove server from placement group