diff --git a/tge/outputters/json.py b/tge/outputters/json.py
index eeb19a9..ab72b1f 100644
--- a/tge/outputters/json.py
+++ b/tge/outputters/json.py
@@ -16,7 +16,7 @@ def output_forum (data, destination):
     os.makedirs(destination)
 
     with open(os.path.join(destination, "index.json"), "w") as out_file:
-        out_file.write(json.dumps({title: data.title}, indent=4))
+        out_file.write(json.dumps({"title": data.title}, indent=4))
 
     for category in data.categories:
         os.makedirs(os.path.join(destination, category.title))