diff --git a/gptc/__main__.py b/gptc/__main__.py
index 26769cb..d98d4bd 100644
--- a/gptc/__main__.py
+++ b/gptc/__main__.py
@@ -72,8 +72,8 @@ def main() -> None:
             ).serialize()
         )
     elif args.subparser_name == "classify":
-        with open(args.model, "r") as f:
-            model = json.load(f)
+        with open(args.model, "rb") as f:
+            model = gptc.deserialize(f.read())
 
         classifier = gptc.Classifier(model, args.max_ngram_length)