diff --git a/lib/ansible/modules/system/parted.py b/lib/ansible/modules/system/parted.py
index 2ad9f5953d..632aad118d 100644
--- a/lib/ansible/modules/system/parted.py
+++ b/lib/ansible/modules/system/parted.py
@@ -590,7 +590,7 @@ def main():
         },
         supports_check_mode=True,
     )
-    module.run_command_environ_update = {'LANG': 'C', 'LC_ALL': 'C', 'LC_MESSAGES': 'C'}
+    module.run_command_environ_update = {'LANG': 'C', 'LC_ALL': 'C', 'LC_MESSAGES': 'C', 'LC_CTYPE': 'C'}
 
     # Data extraction
     device = module.params['device']