diff --git a/superset/utils/network.py b/superset/utils/network.py
index 4a49c9a9ffc4a..8079a96e203b1 100644
--- a/superset/utils/network.py
+++ b/superset/utils/network.py
@@ -30,7 +30,7 @@ def is_port_open(host: str, port: int) -> bool:
     s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
     s.settimeout(PORT_TIMEOUT)
     try:
-        s.connect((host, int(port)))
+        s.connect((host, port))
         s.shutdown(socket.SHUT_RDWR)
         return True
     except socket.error:
@@ -38,8 +38,6 @@ def is_port_open(host: str, port: int) -> bool:
     finally:
         s.close()
 
-    return False
-
 
 def is_hostname_valid(host: str) -> bool:
     """
@@ -51,8 +49,6 @@ def is_hostname_valid(host: str) -> bool:
     except socket.gaierror:
         return False
 
-    return False
-
 
 def is_host_up(host: str) -> bool:
     """