diff --git a/Software/prepare_littlefs.py b/Software/prepare_littlefs.py
index a4b6bf1..346b464 100644
--- a/Software/prepare_littlefs.py
+++ b/Software/prepare_littlefs.py
@@ -44,7 +44,7 @@ def remove_prefix(text, prefix):
 
 def gzip_webfiles(source, target, env):
     # Filetypes to compress
-    filetypes_to_gzip = ['.css', '.png', '.js', '.ico', '.woff2']
+    filetypes_to_gzip = ['.css', '.png', '.js', '.ico', '.woff2', '.json']
     print('\nGZIP: Starting gzip-Process for LittleFS-Image...\n')
     data_src_dir_path = os.path.join(env.get('PROJECT_DIR'), 'data_src')
     data_dir_path = env.get('PROJECT_DATA_DIR')