diff --git a/files/gvm_library.py b/files/gvm_library.py
index edf546b550c2acc58e4b30634fbf775114619bbb..7228e26f02c8d2a2c584805bc2bf0c797408e474 100644
--- a/files/gvm_library.py
+++ b/files/gvm_library.py
@@ -63,7 +63,7 @@ class PortList:
                  client, 
                  name: str, 
                  ports: List[str]):
-        self.client = client,
+        self.client = client
         self.name = name
         self.ports = ','.join(ports)