diff --git a/platformio/maintenance.py b/platformio/maintenance.py
index 0494eff4..f65e4b26 100644
--- a/platformio/maintenance.py
+++ b/platformio/maintenance.py
@@ -42,7 +42,7 @@ def in_silence(ctx=None):
             (ctx.args[0] == "upgrade" or "--json-output" in ctx_args))
 
 
-def clean_cache(ctx):
+def clean_cache():
     with app.LocalCache() as lc:
         lc.clean()