diff --git a/checks/check_api_swarmpit.py b/checks/check_api_swarmpit.py
index be42520..06b15cb 100644
--- a/checks/check_api_swarmpit.py
+++ b/checks/check_api_swarmpit.py
@@ -6,7 +6,7 @@
 - pip3 install requests
 """
 
-__version__     = '0.3.0'
+__version__     = '0.3.1'
 __author__      = 'anima'
 
 # imports
@@ -144,7 +144,7 @@ class DockerSwarmServiceStatesResult(nagiosplugin.Result):
     def __str__(self):
         if self.metric.value['state'] in ['running']:
             if self.metric.value['status']['running'] < self.metric.value['status']['total']:
-                return f'Service {self.metric.value["name"]} ({self.metric.value["image"]}) is {self.metric.value["state"]} with {self.metric.value['status']['running']} of {self.metric.value['status']['total']} replicas'
+                return f'Service {self.metric.value["name"]} ({self.metric.value["image"]}) is {self.metric.value["state"]} with {self.metric.value["status"]["running"]} of {self.metric.value["status"]["total"]} replicas'
             else:
                 return f'Service {self.metric.value["name"]} ({self.metric.value["image"]}) is {self.metric.value["state"]}'
         else: