diff --git a/port.py b/port.py
index 1b4f344..61e9237 100644
--- a/port.py
+++ b/port.py
@@ -576,9 +576,9 @@ class Portainer:
                 print(f"Error stoping stack: {e}")
                 return []
             if "Id" in json.loads(resp):
-                print(f"Stack {self.stacks_all[self.endpoint_id]["by_id"][stack]} : started")
+                print(f"Stack {self.stacks_all[self.endpoint_id]['by_id'][stack]} : started")
             else:
-                print(f"Stack {self.stacks_all[self.endpoint_id]["by_id"][stack]} : {json.loads(resp)['message']}")
+                print(f"Stack {self.stacks_all[self.endpoint_id]['by_id'][stack]} : {json.loads(resp)['message']}")
         return True
     def stop_stack(self,stack,endpoint_id):
         print(f"Stopping stack {stack}")
@@ -599,9 +599,9 @@ class Portainer:
                 print(f"Error stoping stack: {e}")
                 return []
             if "Id" in json.loads(resp):
-                print(f"Stack {self.stacks_all[self.endpoint_id]["by_id"][stack]} : stopped")
+                print(f"Stack {self.stacks_all[self.endpoint_id]['by_id'][stack]} : stopped")
             else:
-                print(f"Stack {self.stacks_all[self.endpoint_id]["by_id"][stack]} : {json.loads(resp)['message']}")
+                print(f"Stack {self.stacks_all[self.endpoint_id]['by_id'][stack]} : {json.loads(resp)['message']}")
         return True
 
     def delete_stack(self, endpoint_id=None, stack=None, timeout=None):