diff --git a/changelogs/fragments/9644-kc_client-test-improvement-and-fix.yaml b/changelogs/fragments/9644-kc_client-test-improvement-and-fix.yaml
new file mode 100644
index 00000000000..63cba991985
--- /dev/null
+++ b/changelogs/fragments/9644-kc_client-test-improvement-and-fix.yaml
@@ -0,0 +1,2 @@
+bugfixes:
+  - keycloak_client - fix and improve existing tests. The module showed a diff without actual changes, solved by improving the ``normalise_cr()`` function (https://github.com/ansible-collections/community.general/pull/9644).
diff --git a/plugins/modules/keycloak_client.py b/plugins/modules/keycloak_client.py
index da82d5460e4..16b16a0f750 100644
--- a/plugins/modules/keycloak_client.py
+++ b/plugins/modules/keycloak_client.py
@@ -820,9 +820,19 @@ def normalise_cr(clientrep, remove_ids=False):
             if remove_ids:
                 mapper.pop('id', None)
 
+            # Convert bool to string
+            if 'config' in mapper:
+                for key, value in mapper['config'].items():
+                    if isinstance(value, bool):
+                        mapper['config'][key] = str(value).lower()
+
             # Set to a default value.
             mapper['consentRequired'] = mapper.get('consentRequired', False)
 
+    if 'attributes' in clientrep:
+        for key, value in clientrep['attributes'].items():
+            if isinstance(value, bool):
+                clientrep['attributes'][key] = str(value).lower()
     return clientrep
 
 
diff --git a/tests/integration/targets/keycloak_client/vars/main.yml b/tests/integration/targets/keycloak_client/vars/main.yml
index 498f93e709d..93f0d4d73e7 100644
--- a/tests/integration/targets/keycloak_client/vars/main.yml
+++ b/tests/integration/targets/keycloak_client/vars/main.yml
@@ -34,9 +34,9 @@ protocol_mappers1:
       "claim.name": "email"
       "user.attribute": "email"
       "jsonType.label": "String"
-      "id.token.claim": "true"
-      "access.token.claim": "true"
-      "userinfo.token.claim": "true"
+      "id.token.claim": true
+      "access.token.claim": true
+      "userinfo.token.claim": true
 
   - name: 'email_verified'
     protocol: 'openid-connect'
@@ -45,9 +45,9 @@ protocol_mappers1:
       "claim.name": "email_verified"
       "user.attribute": "emailVerified"
       "jsonType.label": "boolean"
-      "id.token.claim": "true"
-      "access.token.claim": "true"
-      "userinfo.token.claim": "true"
+      "id.token.claim": true
+      "access.token.claim": true
+      "userinfo.token.claim": true
 
   - name: 'family_name'
     protocol: 'openid-connect'