diff --git a/ros2_batch_job/__main__.py b/ros2_batch_job/__main__.py
index 9be57ab90..f46b0a7eb 100644
--- a/ros2_batch_job/__main__.py
+++ b/ros2_batch_job/__main__.py
@@ -654,6 +654,11 @@ def run(args, build_function, blacklisted_package_names=None):
                 info('Attempting to create a well known branch name for all the default branches')
                 job.run(vcs_cmd + ['custom', '.', '--git', '--args', 'checkout', '-b', '__ci_default'])
 
+                # Check if the branch exists in at least one repo from the given repos file
+                for filename in repos_filenames:
+                    branch_found = check_branch_exists(filename, args.test_branch)
+                    if not branch_found:
+                        print('Warning: None of the repos in ', filename, ' contain the branch ', args.test_branch)
                 # Attempt to switch all the repositories to a given branch
                 info("Attempting to switch all repositories to the '{0}' branch"
                      .format(args.test_branch))
@@ -777,5 +782,24 @@ def _fetch_repos_file(url, filename, job):
     with open(filename, 'r') as f:
         print(f.read())
 
+# Checks if the given branch exists in at least one repo
+def check_branch_exists(filename, branch):
+    # Populate all .git repos
+    lines = []
+    with open(filename) as f: lines = f.readlines()
+
+    urls = []
+    for line in lines:
+        text = line.strip()
+        if text[-4:] == ".git":
+            urls.append(text.replace("url: ", ""))
+
+    for repo in urls :
+        # Check if 'branch' exists in 'repo'
+        ret = os.system("git ls-remote --exit-code --heads " + repo + " " + branch)
+        if not ret : return True
+
+    return False
+
 if __name__ == '__main__':
     sys.exit(main())