diff --git a/plugins/modules/ipahbacrule.py b/plugins/modules/ipahbacrule.py
index 9ea38053a6be8f4b32dea1ffce44487faec779b0..e81adae4182d00d9bf207adec5ba6c7b6d651ef1 100644
--- a/plugins/modules/ipahbacrule.py
+++ b/plugins/modules/ipahbacrule.py
@@ -186,7 +186,17 @@ def find_hbacrule(module, name):
         module.fail_json(
             msg="There is more than one hbacrule '%s'" % (name))
     elif len(_result["result"]) == 1:
-        return _result["result"][0]
+        res = _result["result"][0]
+        # hbacsvcgroup names are converted to lower case while creation with
+        # hbacsvcgroup_add.
+        # The hbacsvcgroup for sudo is builtin with the name "Sudo" though.
+        # This breaks the lower case comparison. Therefore all
+        # memberservice_hbacsvcgroup items are converted to lower case if
+        # "Sudo" is in the list.
+        _member = "memberservice_hbacsvcgroup"
+        if _member in res and "Sudo" in res[_member]:
+            res[_member] = [item.lower() for item in res[_member]]
+        return res
 
     return None
 
diff --git a/tests/hbacrule/test_hbacrule_member_case_insensitive.yml b/tests/hbacrule/test_hbacrule_member_case_insensitive.yml
index e37163de7880e4d7d88bac002b5f8c02cde83c90..59eaed79611a7c8e35e2cdc1f2c257fabd7262bf 100644
--- a/tests/hbacrule/test_hbacrule_member_case_insensitive.yml
+++ b/tests/hbacrule/test_hbacrule_member_case_insensitive.yml
@@ -100,6 +100,7 @@
           - "{{ hbacsvc_list[1] }}"
           hbacsvcgroup:
           - "{{ hbacsvcgroup_list[0] }}"
+          - Sudo
         check_mode: yes
         register: result
         failed_when: not result.changed or result.failed
@@ -124,6 +125,7 @@
           - "{{ hbacsvc_list[1] }}"
           hbacsvcgroup:
           - "{{ hbacsvcgroup_list[0] }}"
+          - Sudo
         register: result
         failed_when: not result.changed or result.failed
 
@@ -147,6 +149,7 @@
           - "{{ hbacsvc_list[1] }}"
           hbacsvcgroup:
           - "{{ hbacsvcgroup_list[0] }}"
+          - Sudo
         check_mode: yes
         register: result
         failed_when: result.changed or result.failed
@@ -171,6 +174,7 @@
           - "{{ hbacsvc_list[1] | lower }}"
           hbacsvcgroup:
           - "{{ hbacsvcgroup_list[0] | lower }}"
+          - sudo
         register: result
         failed_when: result.changed or result.failed
 
@@ -194,6 +198,7 @@
           - "{{ hbacsvc_list[1] | upper }}"
           hbacsvcgroup:
           - "{{ hbacsvcgroup_list[0] | upper }}"
+          - SUDO
         register: result
         failed_when: result.changed or result.failed
 
@@ -230,6 +235,7 @@
           - "{{ hbacsvc_list[1] }}"
           hbacsvcgroup:
           - "{{ hbacsvcgroup_list[0] }}"
+          - Sudo
         check_mode: yes
         register: result
         failed_when: not result.changed or result.failed
@@ -254,6 +260,7 @@
           - "{{ hbacsvc_list[1] }}"
           hbacsvcgroup:
           - "{{ hbacsvcgroup_list[0] }}"
+          - Sudo
           action: member
         register: result
         failed_when: not result.changed or result.failed
@@ -278,6 +285,7 @@
           - "{{ hbacsvc_list[1] }}"
           hbacsvcgroup:
           - "{{ hbacsvcgroup_list[0] }}"
+          - Sudo
         check_mode: yes
         register: result
         failed_when: result.changed or result.failed
@@ -302,6 +310,7 @@
           - "{{ hbacsvc_list[1] | lower }}"
           hbacsvcgroup:
           - "{{ hbacsvcgroup_list[0] | lower }}"
+          - sudo
           action: member
         register: result
         failed_when: result.changed or result.failed
@@ -326,6 +335,7 @@
           - "{{ hbacsvc_list[1] | upper }}"
           hbacsvcgroup:
           - "{{ hbacsvcgroup_list[0] | upper }}"
+          - SUDO
           action: member
         register: result
         failed_when: result.changed or result.failed
@@ -352,6 +362,7 @@
           - "{{ hbacsvc_list[1] | upper }}"
           hbacsvcgroup:
           - "{{ hbacsvcgroup_list[0] | upper }}"
+          - SUDO
           action: member
           state: absent
         check_mode: yes
@@ -378,6 +389,7 @@
           - "{{ hbacsvc_list[1] | upper }}"
           hbacsvcgroup:
           - "{{ hbacsvcgroup_list[0] | upper }}"
+          - SUDO
           action: member
           state: absent
         register: result
@@ -403,6 +415,7 @@
           - "{{ hbacsvc_list[1] | upper }}"
           hbacsvcgroup:
           - "{{ hbacsvcgroup_list[0] | upper }}"
+          - SUDO
           action: member
           state: absent
         check_mode: yes
@@ -449,6 +462,7 @@
           - "{{ hbacsvc_list[1] | lower }}"
           hbacsvcgroup:
           - "{{ hbacsvcgroup_list[0] | lower }}"
+          - sudo
           action: member
           state: absent
         register: result