diff --git a/master.py b/master.py
index 522bd41..801db20 100644
--- a/master.py
+++ b/master.py
@@ -89,7 +89,7 @@ def build(pkgbuild, repo):
         return
 
     p_res = subprocess.run(
-        ["paccache", "-rc", os.path.join(config["basedir"]["repo"], repo, "os", config["arch"]), "-k 1"],
+        ["paccache", "-rc", os.path.join(config["basedir"]["repo"], repo, "os", config["arch"]), "-k", "1"],
         capture_output=True)
     if p_res.returncode:
         logging.error("[%s/%s] Repo cleanup failed: %s", repo, name, p_res)