diff --git a/main.py b/main.py
index ca4c8fa..162838b 100644
--- a/main.py
+++ b/main.py
@@ -159,7 +159,7 @@ def backup_service(servicename: str, servicesdict: dict, composefilepath: str) -
         return True
 
     dockerclient = docker.from_env()
-    containersid = os.popen(f"docker-compose --file {composefilepath} ps --quiet {servicename}").readlines()
+    containersid = os.popen(f"docker-compose --file {composefilepath} ps --quiet {servicename}").read().splitlines()
     containerrunning = []
     for containerid in containersid:
         print(containerid)