diff --git a/master.py b/master.py
index 3210592..b3de894 100644
--- a/master.py
+++ b/master.py
@@ -105,7 +105,7 @@ def run_worker(todo: dict) -> None:
             os.chdir(sys.path[0])
 
 
-def do_repo_work():
+def do_repo_work() -> None:
     for repo in d:
         if d[repo]:
             logging.info("[REPO/%s] Adding %s", repo, ", ".join(d[repo]))
@@ -141,7 +141,7 @@ def already_running() -> bool:
         return True
 
 
-def find_all_files_for_pkg(name, repo) -> list:
+def find_all_files_for_pkg(name: str, repo: str) -> list:
     searchpath = os.path.join(config["basedir"]["repo"], repo, "os", config["arch"]) + "/" + name + "-*.pkg.*"
     pkgs = glob.glob(searchpath)
 
@@ -152,7 +152,7 @@ def find_all_files_for_pkg(name, repo) -> list:
     return pkgs
 
 
-def get_failed_packages(repo) -> list:
+def get_failed_packages(repo: str) -> list:
     if os.path.exists(os.path.join(config["basedir"]["repo"], repo + "_failed.txt")):
         with open(os.path.join(config["basedir"]["repo"], repo + "_failed.txt")) as p:
             return p.read().splitlines()
@@ -160,7 +160,7 @@ def get_failed_packages(repo) -> list:
         return []
 
 
-def setup_chroot():
+def setup_chroot() -> None:
     if not os.path.exists(os.path.join(config["basedir"]["chroot"], "root")):
         pathlib.Path(config["basedir"]["chroot"]).mkdir(parents=True, exist_ok=True)
         s = subprocess.run(["mkarchroot", "-C", "/usr/share/devtools/pacman-extra.conf",