--- a/statistics.c
+++ b/statistics.c
@@ -22,6 +22,7 @@
 unsigned long data_rate_sumup;
 unsigned long data_rate;
 unsigned short data_rate_counter;
+unsigned char rs232_rx_errors;
 
 
 void InitStatistics(void)
@@ -31,4 +32,5 @@
   data_rate_sumup = 0;
   data_rate = 0;
   data_rate_counter = 0;
+  rs232_rx_errors = 0;
 }