diff --git a/include/datIf.h b/include/datIf.h
index c030f71..ede2918 100644
--- a/include/datIf.h
+++ b/include/datIf.h
@@ -169,6 +169,7 @@ class T_datif : public QObject
     uint8_t selectedSlaveAddr;
 
     bool waitForTestResponse = false;
+    uint32_t readCount = 0;
 
 private slots:
     char datif_cycleSend();