diff --git a/src/main.c b/src/main.c
index f33dc7e..549d82f 100644
--- a/src/main.c
+++ b/src/main.c
@@ -252,6 +252,7 @@ int main(void)
 					if (prescale) {
 						uint32_t speed = ((60*F_CPU)/(prescale*(uint32_t)tachometer))/2;
 						printf("fan speed: %lurpm\n",speed);
+						printf("fan speed: %lurpm\n",timer2_ovf);
 					}
 				} else {
 					printf("fan off or too slow\n");