diff --git a/Inc/TaskAdc.h b/Inc/TaskAdc.h
index 8d7ec7b..3fe4d53 100644
--- a/Inc/TaskAdc.h
+++ b/Inc/TaskAdc.h
@@ -11,7 +11,7 @@
 typedef struct {
     tAdcs *adcs;
 
-    uint16_t vcc;
+    int32_t vcc;
 
     struct {
         osThreadId_t id;
diff --git a/Src/TaskAdc.c b/Src/TaskAdc.c
index bb82f8f..f3b71c1 100644
--- a/Src/TaskAdc.c
+++ b/Src/TaskAdc.c
@@ -78,6 +78,8 @@ static _Noreturn void TaskAdc_Thread(tTaskAdc *env) {
 
         env->vcc = env->adcs->vccIo.get(&env->adcs->vcc, 1000);
 
+        env->vcc = 0;
+
         SystemDelayMs(100);
     }
 }