diff --git a/src/main.cpp b/src/main.cpp
index c32c1a1..a741521 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -5,10 +5,6 @@
 #include "stock.h"
 #include "wifi.h"
 
-//#include "esp_heap_trace.h"
-
-//static heap_trace_record_t trace_record[200];
-
 esp_err_t init_nvs() {
   esp_err_t ret = nvs_flash_init();
   if (ret == ESP_ERR_NVS_NO_FREE_PAGES || ret == ESP_ERR_NVS_NEW_VERSION_FOUND) {
@@ -28,7 +24,6 @@ void init() {
 
 extern "C" void app_main() {
   // TODO: Get internet with GUEST_WLAN
-  // TODO: Memory leak
 
   const char* TAG = "app_main";
 
@@ -42,18 +37,9 @@ extern "C" void app_main() {
   xTaskCreate(fetch_stock_task, "fetch_stock_task", 1024*4, NULL, configMAX_PRIORITIES-1, NULL);
 
   /*
-  ESP_ERROR_CHECK(heap_trace_init_standalone(trace_record, 200));
-  ESP_ERROR_CHECK(heap_trace_start(HEAP_TRACE_LEAKS));
-
-  int i = 1;
   for(;;) {
     ESP_LOGI("mem", "Free heap=%lu", esp_get_free_heap_size());
     vTaskDelay(60000 / portTICK_PERIOD_MS);
-    if(--i == 0) {
-      ESP_ERROR_CHECK(heap_trace_stop());
-      heap_trace_dump();
-    }
-
   }
   */
 
diff --git a/src/stock.cpp b/src/stock.cpp
index c757024..547d120 100644
--- a/src/stock.cpp
+++ b/src/stock.cpp
@@ -84,15 +84,18 @@ esp_err_t parse_JSON(const char* json, float* current, float* delta) {
   if (cJSON_GetObjectItem(root, "c")) {
     *current = (float)cJSON_GetObjectItem(root,"c")->valuedouble;
   } else {
+    cJSON_Delete(root);
     return ESP_ERR_NOT_FOUND;
   }
 
   if (cJSON_GetObjectItem(root, "d")) {
     *delta = (float)cJSON_GetObjectItem(root,"d")->valuedouble;
   } else {
+    cJSON_Delete(root);
     return ESP_ERR_NOT_FOUND;
   }
 
+  cJSON_Delete(root);
   return ESP_OK;
 }