diff --git a/changelogs/newline-in-kernel-sem.yml b/changelogs/newline-in-kernel-sem.yml
new file mode 100644
index 000000000..5d09beb86
--- /dev/null
+++ b/changelogs/newline-in-kernel-sem.yml
@@ -0,0 +1,3 @@
+---
+bugfixes:
+  - "wrong block operator caused newline to be appended to __orahost_kernel_semopm and __orahost_kernel_semmni (#540)"
diff --git a/roles/orahost_meta/tasks/calculate_kernel_semaphores.yml b/roles/orahost_meta/tasks/calculate_kernel_semaphores.yml
index cd3d9a1df..592cb0ffe 100644
--- a/roles/orahost_meta/tasks/calculate_kernel_semaphores.yml
+++ b/roles/orahost_meta/tasks/calculate_kernel_semaphores.yml
@@ -27,9 +27,9 @@
   # SEMOPM: min(SEMMSL,1000)
   # SEMMNI: SEMMNS/SEMMSL rounded up to the nearest multiple of 1024
   ansible.builtin.set_fact:
-    __orahost_kernel_semopm: |
+    __orahost_kernel_semopm: >-
       {{ [__orahost_kernel_semmsl | int, 1000] | min }}
-    __orahost_kernel_semmni: |
+    __orahost_kernel_semmni: >-
       {{ ((__orahost_kernel_semmns | int / __orahost_kernel_semmsl | int / 1024) | round(0, 'ceil') * 1024) | int }}
 
 - name: calculate_kernel_semaphores | Increase kernel.sem, if set too low