diff --git a/WebHost.py b/WebHost.py
index 08ef3c430795..09ac256b3e5f 100644
--- a/WebHost.py
+++ b/WebHost.py
@@ -35,6 +35,9 @@ def get_app() -> "Flask":
         logging.info("Getting public IP, as HOST_ADDRESS is empty.")
         app.config["HOST_ADDRESS"] = Utils.get_public_ipv4()
         logging.info(f"HOST_ADDRESS was set to {app.config['HOST_ADDRESS']}")
+    if app.config["DEBUG"]:
+        app.config["CACHE_TYPE"] = "NullCache"
+        logging.info(f"CACHE_TYPE was set to 'NullCache' in DEBUG mode.")
 
     register()
     cache.init_app(app)