diff --git a/library/cloud/docker b/library/cloud/docker
index eb379c27095..f14c5683999 100644
--- a/library/cloud/docker
+++ b/library/cloud/docker
@@ -450,6 +450,7 @@ class DockerManager:
         if expose_list:
             exposed = []
             for port in expose_list:
+                port = port.strip()
                 if port.endswith('/tcp') or port.endswith('/udp'):
                     port_with_proto = tuple(port.split('/'))
                 else: