diff --git a/anta/tests/system.py b/anta/tests/system.py
index d671574b1..be258449e 100644
--- a/anta/tests/system.py
+++ b/anta/tests/system.py
@@ -387,7 +387,7 @@ def test(self) -> None:
                     unitsenteringmaintenance.append(unit)
                     entering = True
                 if info["adminState"] == "underMaintenance":
-                    causes.append("quiesce is configured")
+                    causes.append("Quiesce is configured")
                 if info["onBootMaintenance"]:
                     causes.append("On-boot maintenance is configured")
                 if info["intfsViolatingTrafficThreshold"]:
@@ -400,10 +400,13 @@ def test(self) -> None:
             # Building the error message.
             else:
                 message = ""
+                unitsundermaintenance = ", ".join(unitsundermaintenance)
+                unitsenteringmaintenance = " ".join(unitsenteringmaintenance)
+                causes = ", ".join(causes)
                 if under:
                     message += f"Units under maintenance: '{unitsundermaintenance}'. "
                 if entering:
                     message += f"Units entering maintenance: '{unitsenteringmaintenance}'. "
                 if len(causes) > 0:
-                    message += f"Possible causes: '{causes}'"
+                    message += f"Possible causes: {causes}"
                 self.result.is_failure(message)
diff --git a/tests/units/anta_tests/test_system.py b/tests/units/anta_tests/test_system.py
index 60d4f1574..6a4993443 100644
--- a/tests/units/anta_tests/test_system.py
+++ b/tests/units/anta_tests/test_system.py
@@ -508,6 +508,7 @@
                 "warnings": ["Maintenance Mode is disabled."],
             },
         ],
+        "inputs": None,
         "expected": {"result": "success"},
     },
     {
@@ -530,6 +531,7 @@
                 "vrfs": {},
             },
         ],
+        "inputs": None,
         "expected": {"result": "success"},
     },
     {
@@ -561,6 +563,7 @@
                 "vrfs": {},
             },
         ],
+        "inputs": None,
         "expected": {"result": "success"},
     },
     {
@@ -592,10 +595,11 @@
                 "vrfs": {},
             },
         ],
+        "inputs": None,
         "expected": {
             "result": "failure",
             "messages": [
-                "The following units are currently under maintenance: '['mlag']'. Possible causes: ['quiesce is configured']",
+                "Units under maintenance: 'mlag'. Possible causes: Quiesce is configured",
             ],
         },
     },
@@ -628,10 +632,11 @@
                 "vrfs": {},
             },
         ],
+        "inputs": None,
         "expected": {
             "result": "failure",
             "messages": [
-                "Units under maintenance: '['mlag']'. Units entering maintenance: '['System']' Possible causes: ['quiesce is configured','quiesce is configured']",
+                "Units under maintenance: 'mlag'. Units entering maintenance: 'System'. Possible causes: Quiesce is configured, Quiesce is configured",
             ],
         },
     },
@@ -655,10 +660,11 @@
                 "vrfs": {},
             },
         ],
+        "inputs": None,
         "expected": {
             "result": "failure",
             "messages": [
-                "Units under maintenance: '['System']'. Possible causes: ['On-boot maintenance is configured']",
+                "Units under maintenance: 'System'. Possible causes: Quiesce is configured, On-boot maintenance is configured",
             ],
         },
     },
@@ -682,10 +688,11 @@
                 "vrfs": {},
             },
         ],
+        "inputs": None,
         "expected": {
             "result": "failure",
             "messages": [
-                "Units entering maintenance: '['System']'. Possible causes: ['Interface traffic threshold violation']",
+                "Units entering maintenance: 'System'. Possible causes: Quiesce is configured, Interface traffic threshold violation",
             ],
         },
     },