diff --git a/ennstatus/cli/commands/config.py b/ennstatus/cli/commands/config.py
--- a/ennstatus/cli/commands/config.py
+++ b/ennstatus/cli/commands/config.py
@@ -92,3 +92,9 @@ def delete(obj, name):
 
     with obj['config_file'].open(mode='w', encoding='utf-8') as f:
         json.dump(config, f, indent=4, sort_keys=True)
+
+    filename = obj['data_dir'] / (name + '.json')
+    try:
+        filename.unlink()
+    except FileNotFoundError:
+        pass