diff --git a/agent_based/checkpoint_asg_chassis.py b/agent_based/checkpoint_asg_chassis.py
index 919ac7db0f7d2ba88d8ae676acb0701195f755c7..f0a8bd8b5da7a60964e33a594d91fdece8d9cae8 100644
--- a/agent_based/checkpoint_asg_chassis.py
+++ b/agent_based/checkpoint_asg_chassis.py
@@ -85,14 +85,14 @@ from cmk.base.plugins.agent_based.agent_based_api.v1 import (
 )
 
 
-class CheckPointASGChassisInfo(NamedTuple):
+class CheckoointAsgChassisInfo(NamedTuple):
     mode: str
     hamode: str
     synctoactive: str
     synctostandby: str
 
 
-class CheckPointASGChassisParams(NamedTuple):
+class CheckpointAsgChassisParams(NamedTuple):
     id: str
     status: str
     grade: str
@@ -100,23 +100,23 @@ class CheckPointASGChassisParams(NamedTuple):
     uniqueip: str
 
 
-class CheckPointASGChassisSgms(NamedTuple):
+class CheckPointAsgChassisSgms(NamedTuple):
     id: str
     status: str
 
 
 class CheckPointASGChassis(NamedTuple):
-    info: CheckPointASGChassisInfo
-    chassis: List
-    sgms: List
+    info: CheckoointAsgChassisInfo
+    chassis: List[CheckpointAsgChassisParams]
+    sgms: List[CheckPointAsgChassisSgms]
 
 
 def parse_checkpoint_asg_chassis(string_table: List[StringTable]) -> Optional[CheckPointASGChassis]:
     try:
         return CheckPointASGChassis(
-            info=CheckPointASGChassisInfo(*string_table[0][0]),
-            chassis=[CheckPointASGChassisParams(*chassis) for chassis in string_table[1]],
-            sgms=[CheckPointASGChassisSgms(*sgm) for sgm in string_table[2]]
+            info=CheckoointAsgChassisInfo(*string_table[0][0]),
+            chassis=[CheckpointAsgChassisParams(*chassis) for chassis in string_table[1]],
+            sgms=[CheckPointAsgChassisSgms(*sgm) for sgm in string_table[2]]
         )
     except (TypeError, IndexError):
         pass
diff --git a/checkpoint_asg_chassis.mkp b/checkpoint_asg_chassis.mkp
index 8f4289ccd901f69457f4758bf2883f3e4e4028b0..c45da4678568bd8c43e975d407a913aee6aceadf 100644
Binary files a/checkpoint_asg_chassis.mkp and b/checkpoint_asg_chassis.mkp differ