diff --git a/ci-scripts/cls_containerize.py b/ci-scripts/cls_containerize.py
index e3893b8179..d933c1e143 100644
--- a/ci-scripts/cls_containerize.py
+++ b/ci-scripts/cls_containerize.py
@@ -974,6 +974,7 @@ class Containerize():
 			return
 
 		cmd = 'cd ' + self.yamlPath[0] + ' && cp docker-compose.y*ml docker-compose-ci.yml'
+		subprocess.run(cmd, shell=True)
 		imageNames = ['oai-enb', 'oai-gnb', 'oai-lte-ue', 'oai-nr-ue', 'oai-lte-ru']
 		for image in imageNames:
 			tagToUse = self.ImageTagToUse(image)