diff --git a/bauh/commons/system.py b/bauh/commons/system.py
index 20eb0aff..4d05ea45 100644
--- a/bauh/commons/system.py
+++ b/bauh/commons/system.py
@@ -63,7 +63,7 @@ class SystemProcess:
 
 class SimpleProcess:
 
-    def __init__(self, cmd: List[str], cwd: str = '.', expected_code: int = None,
+    def __init__(self, cmd: List[str], cwd: str = '.', expected_code: int = 0,
                  global_interpreter: bool = USE_GLOBAL_INTERPRETER, lang: str = DEFAULT_LANG, root_password: str = None,
                  extra_paths: Set[str] = None, error_phrases: Set[str] = None):
         pwdin, final_cmd = None, []
@@ -179,7 +179,7 @@ class ProcessHandler:
         proc.instance.wait()
         output.seek(0)
 
-        success = proc.instance.returncode == proc.expected_code,
+        success = proc.instance.returncode == proc.expected_code
         string_output = output.read()
 
         if proc.error_phrases:
diff --git a/bauh/gems/arch/controller.py b/bauh/gems/arch/controller.py
index b30484a0..c1d12f09 100644
--- a/bauh/gems/arch/controller.py
+++ b/bauh/gems/arch/controller.py
@@ -2163,10 +2163,17 @@ class ArchManager(SoftwareManager):
                                         body=text,
                                         confirmation_label=self.i18n['clean'].capitalize(),
                                         deny_label=self.i18n['cancel'].capitalize()):
-            rm = SimpleProcess(cmd=['rm', '-rf', '{}/*'.format(cache_dir)], root_password=root_password)
 
             handler = ProcessHandler(watcher)
-            success, output = handler.handle_simple(rm)
+            success = True
+            for f in glob.glob('{}/*'.format(cache_dir)):
+                rm = SimpleProcess(cmd=['rm', '-rf', f], root_password=root_password)
+
+                success, _ = handler.handle_simple(rm)
+
+                if not success:
+                    success = False
+                    break
 
             if success:
                 watcher.show_message(title=self.i18n['arch.custom_action.clean_cache'].capitalize(),
diff --git a/bauh/gems/arch/pacman.py b/bauh/gems/arch/pacman.py
index 75c1c425..1b9550c8 100644
--- a/bauh/gems/arch/pacman.py
+++ b/bauh/gems/arch/pacman.py
@@ -838,7 +838,13 @@ def get_cache_dir() -> str:
             if not string.strip().startswith('#'):
                 cache_dirs.append(string.split('=')[1].strip())
 
-        return cache_dirs[-1] if cache_dirs else '/var/cache/pacman/pkg/'
+        if cache_dirs:
+            if cache_dirs[-1][-1] == '/':
+                return cache_dirs[-1][0:-1]
+            else:
+                return cache_dirs[-1]
+        else:
+            return '/var/cache/pacman/pkg'
 
 
 def map_required_by(names: Iterable[str]) -> Dict[str, Set[str]]: