diff --git a/src/db/sets.cpp b/src/db/sets.cpp
index 8ff2bf5..12a6694 100644
--- a/src/db/sets.cpp
+++ b/src/db/sets.cpp
@@ -100,9 +100,9 @@ extern "C"
     int modify_set(int id, const char* name, const char* problems, const char* data)
     {
         auto json = nlohmann::json{
-            {"name",     name                       },
-            {"problems", nlohmann::json(problems)   },
-            {"data",     nlohmann::json::parse(data)}
+            {"name",     name                           },
+            {"problems", nlohmann::json::parse(problems)},
+            {"data",     nlohmann::json::parse(data)    }
         };
         auto status = sets_db->Put(leveldb::WriteOptions{}, std::to_string(id), json.dump());
         if (!status.ok()) {